--- title: "How to verify a consumer electronics plastic enclosure factory can meet 0.1mm tolerance requirements?" description: "Struggling to balance tight tolerance, consistent surface finish and controlled cost for new wireless charger plastic enclosures? Get actionable breakdown of quote comparison, supplier verification and risk control methods to avoid mass production delays." url: "https://www.ok-tool.com/qa/verify-consumer-electronics-plastic-enclosure-factory-01mm-tolerance.html" language: "en" type: "Q&A" category: "Plastic Components Q&A" datePublished: "2026-09-17" dateModified: "2026-09-17" brand: "OK TOOL" manufacturer: "OK TOOL" answerCount: 10 --- # How to verify a consumer electronics plastic enclosure factory can meet 0.1mm tolerance requirements? ## Question I’m currently sourcing custom plastic enclosures for our new 15W wireless charger launch scheduled for Q4 2026, with total order volume of 120,000 units split into 3 production runs. Last year we worked with a general injection shop that delivered 18% of units with visible flow marks and inconsistent matte texture, leading to 2 weeks of rework and a 7% delay to our retail launch window. Right now I have 3 quotes from different consumer electronics plastic enclosure factories, but their per-unit price ranges 22% from lowest to highest, no two suppliers list the same line items for mold cost, surface treatment and quality inspection. I don’t know which hidden cost or unstated capability will cause the same launch risk again, and I need a clear framework to compare these quotes properly to pick a qualified supplier without overpaying or cutting critical process corners that will hurt our finished product yield. ## Answers ### Answer 1 — Best Answer Start with confirming your core requirement baseline first, before digging into quote comparison. All consumer electronics plastic enclosures for retail launch have 3 non-negotiable threshold requirements: dimensional tolerance within ±0.1mm for PCB fit, no visible defects under 500 lux front lighting, and post-molding matte texture uniformity across 100% of the production batch. Filter out any supplier that does not explicitly list these 3 items in their quality scope first, before you compare any pricing numbers, as the 2026 market average for unqualified suppliers missing these thresholds is 32% higher than targeted rework cost, which will erase any initial per-unit savings you see in the lowest quote. Break down the cost difference across the 3 quotes first, no vague "processing fee" line items allowed. For any valid consumer electronics plastic enclosure quote, total cost splits into 4 non-overlapping parts: custom hard tooling cost (28-35% of total NRE), material cost per unit (32-38% of per-unit price), post-molding surface finishing and inspection (17-22% of per-unit price), and factory overhead + profit (12-18% of per-unit price). **Any quote that lists per-unit material cost below 30% of the total per-unit price almost always uses 10-15% regrind resin mixed into virgin ABS/PC, which leads to uneven surface texture and lower impact resistance.** The 22% price gap you see across the 3 quotes almost certainly comes from unstated differences in material formulation, mold steel grade, and incoming inspection scope, not just factory efficiency. Then move to lead time validation, to eliminate hidden delays. The 2026 industry standard timeline for 120k units of custom consumer electronics plastic enclosures is 12-15 days for prototype samples, 22-28 days for hardened tooling, and 7-9 days per 40k unit production run. **Ask each supplier to submit a line-item milestone sheet with penalty clauses written into the formal PO for any delay over 3 working days for each stage, no exceptions.** If a supplier promises you 10 days for hardened tooling delivery with no additional cost, they are almost certainly skipping the 2nd CNC finishing pass for the mold cavity surface, which will show uneven texture on 20-30% of the first 5k units you run. Final supplier selection criteria, no arbitrary scoring required. You only need to verify 3 tangible records during your 1-day factory audit: first, pull their last 3 production reports for similar-sized consumer electronics enclosures, check that their batch yield is 96% or higher for matte finish parts; second, check their raw material warehouse to confirm they stock the exact ABS+PC blend grade you specified, with unbroken lot traceability labels; third, run 50 consecutive shot trial on their injection machine with your test mold, check that all 50 parts have no visible flow marks when laid under standard retail store lighting. **Do not sign the final PO until you get 10 pre-production samples signed off by your in-house quality team, matched against your official surface standard sample.** **status:** accepted **Author:** Jason Zhou **Date:** 2026-09-17 ### Answer 2 You need to lock 3 formal sign-off gates before any production starts, to eliminate unplanned changes that cause launch delays. The first gate is 100% dimensional validation of 3D printed prototype parts against your PCB CAD file, no structural modifications are allowed after this gate unless both sides submit a formal change order with updated cost and lead time calculation. The second gate is pre-production sample sign-off, where you confirm the exact surface finish, color shade, and fit performance in person, instead of approving photos sent over email. The third gate is 10% pilot run completion, where the supplier processes 12,000 units first, sends full inspection reports, and confirms the batch yield meets your required threshold before they start mass processing the remaining 108,000 units. All 3 gates need written confirmation from both teams, and any unapproved adjustment that skips a gate will create unquantifiable quality risk for the full order. **status:** suggested **Author:** Daniel Yang **Date:** 2026-09-17 ### Answer 3 You need to define clear defect classification rules before the first sample is produced, to avoid disputes during batch inspection. Split all possible defects into 3 categories: critical defects that lead to direct product failure, such as cracks that break the enclosure during drop test; major defects that make the part unqualified for retail, such as visible flow marks, color deviation over Delta E 2, or flash that exceeds 0.05mm; minor defects that do not affect function or appearance, such as tiny unnoticeable ejector pin marks on the hidden back side. All inspection checkpoints will follow IQC for incoming raw material lot verification, IPQC for every 2 hours of injection production to pull 20 sample parts for dimension check, and OQC to do full appearance check for every unit, with a random 3% sampling for full dimensional testing. The acceptable quality limit should be set at 0 critical defects, 0.5% maximum major defects, no loose tolerance negotiation allowed. **status:** suggested **Author:** Michael Wu **Date:** 2026-09-17 ### Answer 4 The biggest yield loss for consumer electronics plastic enclosures usually happens after 30% of the mold life is used, when cavity wear starts creating small uneven texture spots that most suppliers ignore. You can ask the supplier to provide their historical yield trend data for similar parts over 100k shot cycles, to confirm they have a formal planned maintenance routine that pauses production every 15,000 shots for cavity surface polishing, no extra cost charged to you. They should also run a small 100-shot trial after each scheduled maintenance to confirm surface finish consistency returns to your standard, before they resume full production. This routine will usually lift overall batch yield by 3-7% compared to shops that only do mold maintenance after obvious defects appear, and it reduces the risk of getting a bad 20k unit batch in the middle of your production run that no one notices until it is too late. **status:** suggested **Author:** Olivia Chen **Date:** 2026-09-17 ### Answer 5 The difference in mold steel grade between mid-range and low-cost options directly determines your part consistency across the full 120k order. If a supplier quotes a very low mold cost, they usually use P20 steel which has a service life of around 50k shots, and the cavity surface will start to wear unevenly after 30k shots, leading to inconsistent matte texture for the rest of the order. For your 120k unit order, you need to confirm the mold uses 718H grade pre-hardened steel, which has a standard service life of 300k shots, and the cavity surface can be etched to your required matte finish with zero deformation after the full production run. Also confirm the mold has a full hot runner system with no manual trimming required for the gate mark, which eliminates extra post-processing work that creates uneven appearance on the visible face of the enclosure. Mold maintenance cost for the full order cycle should be included in the initial quote, no separate hidden charges. **status:** suggested **Author:** Rachel Huang **Date:** 2026-09-17 ### Answer 6 You can catch 70% of unstated quality risk before the mold is even machined, by reviewing the feedback report the supplier submits. The most common hidden design issue for wireless charger plastic enclosures is uneven wall thickness around the charging coil cutout, which is usually 1.8mm while the main body wall is 2.2mm, leading to sink marks that show on the outer visible face of the matte part. The supplier should adjust the wall thickness transition to be gradual, no step changes over 0.3mm difference, and add subtle hidden rib structures on the inner non-visible side to reduce material shrinkage. They should also add at least 1 degree of draft angle on all vertical walls of the enclosure, to avoid scuff marks on the visible surface when the part is ejected from the mold. Any report that does not mention these 2 design adjustments means the engineering team did not do a full review, and you will face high defect rate after production starts. **status:** suggested **Author:** Emily Chen **Date:** 2026-09-17 ### Answer 7 The small difference in resin grade that most general injection shops ignore will have huge impact on your final product appearance and performance. For consumer electronics enclosures, the standard virgin material is flame retardant ABS+PC blend with 5% talc filler, which balances impact resistance, matte texture performance, and low shrinkage rate. Low cost suppliers often use 30% recycled ABS mixed with virgin resin, which has inconsistent melt flow rate, leading to random flow marks that cannot be fixed even with optimized process parameters. You can require the supplier to provide the full material COA for every incoming lot, and reserve 2 random sample parts from the first production batch for third party material composition testing, to confirm no unapproved recycled content is added. There is no need to select extra high performance engineering resin that costs 40% more, as it will not bring any tangible benefit for this application, and just raise your per unit cost without added value. **status:** suggested **Author:** Eric Zhao **Date:** 2026-09-17 ### Answer 8 You need to lock the final optimized process window during the pre-production trial, to avoid unplanned process adjustment by shift workers on different production runs. The most common issue that leads to uneven appearance across batches is that different machine operators adjust melt temperature, injection speed, and holding pressure randomly to boost production output, which creates inconsistent shrinkage and flow marks. The optimized process window should be validated for 3 consecutive runs on the exact same injection machine that will be used for mass production, then documented as a fixed SOP that no operator can adjust without written approval. You can also confirm the supplier uses a mold temperature controller with ±1°C precision, to keep the cavity surface temperature consistent across every shot, which eliminates 80% of random matte texture variations that show up on different parts. **status:** suggested **Author:** Amy Li **Date:** 2026-09-17 ### Answer 9 Tolerance stack up risk between your plastic enclosure and the internal PCB, rubber foot pads, and charging coil is often overlooked during the part sampling stage, leading to high assembly failure rate during your in-house production. You can ask the supplier to deliver 20 pre-production parts first, then do a full trial assembly with your existing internal components to check for fit issues: confirm the PCB locks into the snap fit slots with no extra force required, the rubber foot pads press into the back enclosure recess with no gap, and the top and bottom half of the enclosure click together with no uneven parting line gap over 0.03mm. If you find any tight fit or loose fit issue at this stage, you can adjust the mold cavity dimension before full production starts, instead of finding 10% of the parts cannot assemble properly after you receive the full batch, which will create huge rework cost and delay your launch timeline. **status:** suggested **Author:** Linda Xu **Date:** 2026-09-17 ### Answer 10 The post-machining edge finishing quality of the plastic enclosure will have huge impact on the final perceived quality of your consumer product, and most low cost suppliers skip this step to save time. For the USB-C cutout on the side of your wireless charger enclosure, if the supplier only does a direct punch after molding, the edge will have a small burr and uneven radius that makes the port look cheap when the customer inserts the cable. You can confirm that all sharp cutout edges will go through a manual deburring and micro polishing step, so the edge has a consistent 0.2mm rounded radius, no visible burrs under normal lighting. This extra step only adds 0.02 USD to each unit cost, but it will lift the perceived product quality significantly, and reduce user complaints about rough edges on the product review page after retail launch. **status:** suggested **Author:** David Zhang **Date:** 2026-09-17 ## Related Resources - [Plastic Components Q&A](https://www.ok-tool.com/qa/plastic-components/) - [Plastic Components](https://www.ok-tool.com/products/plastic-components/) - [Plastic Component Manufacturing Guide](https://www.ok-tool.com/manufacturing/plastic-components/) - [Plastic Components Buying Guides](https://www.ok-tool.com/buying/plastic-components/) - [Capabilities](https://www.ok-tool.com/capabilities/) - [Custom Manufacturing](https://www.ok-tool.com/custom-manufacturing/) - [Manufacturing Knowledge Base](https://www.ok-tool.com/knowledge/) - [Plastic Components](https://www.ok-tool.com/knowledge/plastic-components/) ## Structured Data ```json [ { "@context": "https://schema.org", "@type": "QAPage", "mainEntity": { "@type": "Question", "name": "How to verify a consumer electronics plastic enclosure factory can meet 0.1mm tolerance requirements?", "text": "I’m currently sourcing custom plastic enclosures for our new 15W wireless charger launch scheduled for Q4 2026, with total order volume of 120,000 units split into 3 production runs. Last year we worked with a general injection shop that delivered 18% of units with visible flow marks and inconsistent matte texture, leading to 2 weeks of rework and a 7% delay to our retail launch window. Right now I have 3 quotes from different consumer electronics plastic enclosure factories, but their per-unit price ranges 22% from lowest to highest, no two suppliers list the same line items for mold cost, surface treatment and quality inspection. I don’t know which hidden cost or unstated capability will cause the same launch risk again, and I need a clear framework to compare these quotes properly to pick a qualified supplier without overpaying or cutting critical process corners that will hurt our finished product yield.", "answerCount": 10, "upvoteCount": 5, "datePublished": "2026-09-17T01:10:37Z", "dateModified": "2026-09-17T01:11:42Z", "author": { "@type": "Person", "name": "Anonymous", "url": "https://www.ok-tool.com/qa/verify-consumer-electronics-plastic-enclosure-factory-01mm-tolerance.html" } ,"acceptedAnswer": { "@type": "Answer", "text": "Start with confirming your core requirement baseline first, before digging into quote comparison. All consumer electronics plastic enclosures for retail launch have 3 non-negotiable threshold requirements: dimensional tolerance within ±0.1mm for PCB fit, no visible defects under 500 lux front lighting, and post-molding matte texture uniformity across 100% of the production batch. Filter out any supplier that does not explicitly list these 3 items in their quality scope first, before you compare any pricing numbers, as the 2026 market average for unqualified suppliers missing these thresholds is 32% higher than targeted rework cost, which will erase any initial per-unit savings you see in the lowest quote. Break down the cost difference across the 3 quotes first, no vague "processing fee" line items allowed. For any valid consumer electronics plastic enclosure quote, total cost splits into 4 non-overlapping parts: custom hard tooling cost (28-35% of total NRE), material cost per unit (32-38% of per-unit price), post-molding surface finishing and inspection (17-22% of per-unit price), and factory overhead + profit (12-18% of per-unit price). Any quote that lists per-unit material cost below 30% of the total per-unit price almost always uses 10-15% regrind resin mixed into virgin ABS/PC, which leads to uneven surface texture and lower impact resistance. The 22% price gap you see across the 3 quotes almost certainly comes from unstated differences in material formulation, mold steel grade, and incoming inspection scope, not just factory efficiency. Then move to lead time validation, to eliminate hidden delays. The 2026 industry standard timeline for 120k units of custom consumer electronics plastic enclosures is 12-15 days for prototype samples, 22-28 days for hardened tooling, and 7-9 days per 40k unit production run. Ask each supplier to submit a line-item milestone sheet with penalty clauses written into the formal PO for any delay over 3 working days for each stage, no exceptions. If a supplier promises you 10 days for hardened tooling delivery with no additional cost, they are almost certainly skipping the 2nd CNC finishing pass for the mold cavity surface, which will show uneven texture on 20-30% of the first 5k units you run. Final supplier selection criteria, no arbitrary scoring required. You only need to verify 3 tangible records during your 1-day factory audit: first, pull their last 3 production reports for similar-sized consumer electronics enclosures, check that their batch yield is 96% or higher for matte finish parts; second, check their raw material warehouse to confirm they stock the exact ABS+PC blend grade you specified, with unbroken lot traceability labels; third, run 50 consecutive shot trial on their injection machine with your test mold, check that all 50 parts have no visible flow marks when laid under standard retail store lighting. Do not sign the final PO until you get 10 pre-production samples signed off by your in-house quality team, matched against your official surface standard sample.", "upvoteCount": 5, "url": "https://www.ok-tool.com/qa/verify-consumer-electronics-plastic-enclosure-factory-01mm-tolerance.html#acceptedAnswer", "datePublished": "2026-09-17T02:31:56Z", "author": {"@type": "Person","name": "Jason Zhou","url": "https://www.ok-tool.com/team/jason.html"} } ,"suggestedAnswer": [ { "@type": "Answer", "text": "You need to lock 3 formal sign-off gates before any production starts, to eliminate unplanned changes that cause launch delays. The first gate is 100% dimensional validation of 3D printed prototype parts against your PCB CAD file, no structural modifications are allowed after this gate unless both sides submit a formal change order with updated cost and lead time calculation. The second gate is pre-production sample sign-off, where you confirm the exact surface finish, color shade, and fit performance in person, instead of approving photos sent over email. The third gate is 10% pilot run completion, where the supplier processes 12,000 units first, sends full inspection reports, and confirms the batch yield meets your required threshold before they start mass processing the remaining 108,000 units. All 3 gates need written confirmation from both teams, and any unapproved adjustment that skips a gate will create unquantifiable quality risk for the full order.", "upvoteCount": 0, "url": "https://www.ok-tool.com/qa/verify-consumer-electronics-plastic-enclosure-factory-01mm-tolerance.html#suggestedAnswer-2", "datePublished": "2026-09-17T02:24:37Z", "author": {"@type": "Person","name": "Daniel Yang","url": "https://www.ok-tool.com/team/daniel.html"} } , { "@type": "Answer", "text": "You need to define clear defect classification rules before the first sample is produced, to avoid disputes during batch inspection. Split all possible defects into 3 categories: critical defects that lead to direct product failure, such as cracks that break the enclosure during drop test; major defects that make the part unqualified for retail, such as visible flow marks, color deviation over Delta E 2, or flash that exceeds 0.05mm; minor defects that do not affect function or appearance, such as tiny unnoticeable ejector pin marks on the hidden back side. All inspection checkpoints will follow IQC for incoming raw material lot verification, IPQC for every 2 hours of injection production to pull 20 sample parts for dimension check, and OQC to do full appearance check for every unit, with a random 3% sampling for full dimensional testing. The acceptable quality limit should be set at 0 critical defects, 0.5% maximum major defects, no loose tolerance negotiation allowed.", "upvoteCount": 0, "url": "https://www.ok-tool.com/qa/verify-consumer-electronics-plastic-enclosure-factory-01mm-tolerance.html#suggestedAnswer-3", "datePublished": "2026-09-17T02:20:11Z", "author": {"@type": "Person","name": "Michael Wu","url": "https://www.ok-tool.com/team/michael.html"} } , { "@type": "Answer", "text": "The biggest yield loss for consumer electronics plastic enclosures usually happens after 30% of the mold life is used, when cavity wear starts creating small uneven texture spots that most suppliers ignore. You can ask the supplier to provide their historical yield trend data for similar parts over 100k shot cycles, to confirm they have a formal planned maintenance routine that pauses production every 15,000 shots for cavity surface polishing, no extra cost charged to you. They should also run a small 100-shot trial after each scheduled maintenance to confirm surface finish consistency returns to your standard, before they resume full production. This routine will usually lift overall batch yield by 3-7% compared to shops that only do mold maintenance after obvious defects appear, and it reduces the risk of getting a bad 20k unit batch in the middle of your production run that no one notices until it is too late.", "upvoteCount": 0, "url": "https://www.ok-tool.com/qa/verify-consumer-electronics-plastic-enclosure-factory-01mm-tolerance.html#suggestedAnswer-4", "datePublished": "2026-09-17T02:15:49Z", "author": {"@type": "Person","name": "Olivia Chen","url": "https://www.ok-tool.com/team/olivia.html"} } , { "@type": "Answer", "text": "The difference in mold steel grade between mid-range and low-cost options directly determines your part consistency across the full 120k order. If a supplier quotes a very low mold cost, they usually use P20 steel which has a service life of around 50k shots, and the cavity surface will start to wear unevenly after 30k shots, leading to inconsistent matte texture for the rest of the order. For your 120k unit order, you need to confirm the mold uses 718H grade pre-hardened steel, which has a standard service life of 300k shots, and the cavity surface can be etched to your required matte finish with zero deformation after the full production run. Also confirm the mold has a full hot runner system with no manual trimming required for the gate mark, which eliminates extra post-processing work that creates uneven appearance on the visible face of the enclosure. Mold maintenance cost for the full order cycle should be included in the initial quote, no separate hidden charges.", "upvoteCount": 0, "url": "https://www.ok-tool.com/qa/verify-consumer-electronics-plastic-enclosure-factory-01mm-tolerance.html#suggestedAnswer-5", "datePublished": "2026-09-17T02:06:43Z", "author": {"@type": "Person","name": "Rachel Huang","url": "https://www.ok-tool.com/team/rachel.html"} } , { "@type": "Answer", "text": "You can catch 70% of unstated quality risk before the mold is even machined, by reviewing the feedback report the supplier submits. The most common hidden design issue for wireless charger plastic enclosures is uneven wall thickness around the charging coil cutout, which is usually 1.8mm while the main body wall is 2.2mm, leading to sink marks that show on the outer visible face of the matte part. The supplier should adjust the wall thickness transition to be gradual, no step changes over 0.3mm difference, and add subtle hidden rib structures on the inner non-visible side to reduce material shrinkage. They should also add at least 1 degree of draft angle on all vertical walls of the enclosure, to avoid scuff marks on the visible surface when the part is ejected from the mold. Any report that does not mention these 2 design adjustments means the engineering team did not do a full review, and you will face high defect rate after production starts.", "upvoteCount": 0, "url": "https://www.ok-tool.com/qa/verify-consumer-electronics-plastic-enclosure-factory-01mm-tolerance.html#suggestedAnswer-6", "datePublished": "2026-09-17T02:03:07Z", "author": {"@type": "Person","name": "Emily Chen","url": "https://www.ok-tool.com/team/emily.html"} } , { "@type": "Answer", "text": "The small difference in resin grade that most general injection shops ignore will have huge impact on your final product appearance and performance. For consumer electronics enclosures, the standard virgin material is flame retardant ABS+PC blend with 5% talc filler, which balances impact resistance, matte texture performance, and low shrinkage rate. Low cost suppliers often use 30% recycled ABS mixed with virgin resin, which has inconsistent melt flow rate, leading to random flow marks that cannot be fixed even with optimized process parameters. You can require the supplier to provide the full material COA for every incoming lot, and reserve 2 random sample parts from the first production batch for third party material composition testing, to confirm no unapproved recycled content is added. There is no need to select extra high performance engineering resin that costs 40% more, as it will not bring any tangible benefit for this application, and just raise your per unit cost without added value.", "upvoteCount": 0, "url": "https://www.ok-tool.com/qa/verify-consumer-electronics-plastic-enclosure-factory-01mm-tolerance.html#suggestedAnswer-7", "datePublished": "2026-09-17T01:55:57Z", "author": {"@type": "Person","name": "Eric Zhao","url": "https://www.ok-tool.com/team/eric.html"} } , { "@type": "Answer", "text": "You need to lock the final optimized process window during the pre-production trial, to avoid unplanned process adjustment by shift workers on different production runs. The most common issue that leads to uneven appearance across batches is that different machine operators adjust melt temperature, injection speed, and holding pressure randomly to boost production output, which creates inconsistent shrinkage and flow marks. The optimized process window should be validated for 3 consecutive runs on the exact same injection machine that will be used for mass production, then documented as a fixed SOP that no operator can adjust without written approval. You can also confirm the supplier uses a mold temperature controller with ±1°C precision, to keep the cavity surface temperature consistent across every shot, which eliminates 80% of random matte texture variations that show up on different parts.", "upvoteCount": 0, "url": "https://www.ok-tool.com/qa/verify-consumer-electronics-plastic-enclosure-factory-01mm-tolerance.html#suggestedAnswer-8", "datePublished": "2026-09-17T01:55:04Z", "author": {"@type": "Person","name": "Amy Li","url": "https://www.ok-tool.com/team/amy.html"} } , { "@type": "Answer", "text": "Tolerance stack up risk between your plastic enclosure and the internal PCB, rubber foot pads, and charging coil is often overlooked during the part sampling stage, leading to high assembly failure rate during your in-house production. You can ask the supplier to deliver 20 pre-production parts first, then do a full trial assembly with your existing internal components to check for fit issues: confirm the PCB locks into the snap fit slots with no extra force required, the rubber foot pads press into the back enclosure recess with no gap, and the top and bottom half of the enclosure click together with no uneven parting line gap over 0.03mm. If you find any tight fit or loose fit issue at this stage, you can adjust the mold cavity dimension before full production starts, instead of finding 10% of the parts cannot assemble properly after you receive the full batch, which will create huge rework cost and delay your launch timeline.", "upvoteCount": 0, "url": "https://www.ok-tool.com/qa/verify-consumer-electronics-plastic-enclosure-factory-01mm-tolerance.html#suggestedAnswer-9", "datePublished": "2026-09-17T01:42:18Z", "author": {"@type": "Person","name": "Linda Xu","url": "https://www.ok-tool.com/team/linda.html"} } , { "@type": "Answer", "text": "The post-machining edge finishing quality of the plastic enclosure will have huge impact on the final perceived quality of your consumer product, and most low cost suppliers skip this step to save time. For the USB-C cutout on the side of your wireless charger enclosure, if the supplier only does a direct punch after molding, the edge will have a small burr and uneven radius that makes the port look cheap when the customer inserts the cable. You can confirm that all sharp cutout edges will go through a manual deburring and micro polishing step, so the edge has a consistent 0.2mm rounded radius, no visible burrs under normal lighting. This extra step only adds 0.02 USD to each unit cost, but it will lift the perceived product quality significantly, and reduce user complaints about rough edges on the product review page after retail launch.", "upvoteCount": 0, "url": "https://www.ok-tool.com/qa/verify-consumer-electronics-plastic-enclosure-factory-01mm-tolerance.html#suggestedAnswer-10", "datePublished": "2026-09-17T01:11:42Z", "author": {"@type": "Person","name": "David Zhang","url": "https://www.ok-tool.com/team/david.html"} } ] } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ {"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.ok-tool.com/"},{"@type": "ListItem", "position": 2, "name": "Q&A", "item": "https://www.ok-tool.com/qa/"},{"@type": "ListItem", "position": 3, "name": "Plastic Components Q&A >", "item": "https://www.ok-tool.com/qa/plastic-components/>"} ,{"@type": "ListItem", "position": 4, "name": "How to verify a consumer electronics plastic enclosure factory can meet 0.1mm tolerance requirements?"} ] } ] ```