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Omega Products ER20 Collet Standard Precision - 10 Micron Run-Out - 11mm - 10mm
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Description
Omega ER20 Collet Standard Precision - 10 Micron Run-Out - 11mm - 10mm is built for dependable, repeatable toolholding in ER20 chucks. This precision collet is designed to clamp round tooling with exceptional concentricity, making it a reliable upgrade for any milling, drilling, or engraving setup that uses an ER20 system.

Why this matters in practice. In CNC milling and micro-machining, even small run-out can affect toolpath accuracy, surface finish, and tool life. The 10 micron run-out specification translates to notably tighter tolerance control across many operations, helping you achieve cleaner cuts, crisper grooves, and more consistent diameters without chasing compensation in your CAM programs.
Key advantages at a glance:
- High-precision clamping designed to minimize run-out and maintain stable grip on round tooling in ER20 chucks.
- 10 micron run-out provides improved concentricity for small-diameter tools and delicate operations, enhancing finish quality and dimensional accuracy.
- Standard ER20 compatibility—easy integration with existing chucks and tooling libraries, reducing downtime during swaps or upgrades.
- Robust, repeatable performance across repeated cycles, helping you maintain consistent results from job to job.
- Ideal for general-purpose machining where precision matters but setup needs to stay straightforward and reliable.
Who benefits most. This standard precision ER20 collet is an excellent fit for professional shops and serious hobbyists who demand dependable grip and predictable results when milling, drilling, or engraving with ER20 tooling. It’s particularly well-suited for operators working with small-to-medium diameter tooling where run-out sensitivity is a priority and where repeatable results save time on inspection and rework.
Practical usage tips. Clean both the collet bore and the mating tool shank before installation to maximize clamping efficiency. Use a properly torqued chuck to harness the 10 micron run-out capability, and store the collet in a clean, dry environment to preserve surface finish and accuracy over time. For best results, pair this collet with compatible ER20 tooling and a well-tuned milling or engraving setup to realize the full precision potential.
Part Numbers
- Protool Part Number
- OM32141
- Brand
- Omega
- Category
- ER Collet
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
Full Range: Omega Products ER20 Collets Standard Precision - 10 Micron Run-Out
View full collection →You are viewing OM32141. Click any other SKU to view its full details.
| Product SKU | Collet Size | Clamping Size | Price | Stock | Order |
|---|---|---|---|---|---|
| OM32144 | ER20 | 1.0-0.5 | £8.52 | In Stock | |
| OM32145 | ER20 | 1.5-1.0 | £8.52 | In Stock | |
| OM32132 | ER20 | 2.0-1.5 | £6.41 | In Stock | |
| OM32146 | ER20 | 2.5-2.0 | £7.86 | In Stock | |
| OM32133 | ER20 | 3.0-3.5 | £6.41 | In Stock | |
| OM32147 | ER20 | 3.5-2.5 | £7.86 | In Stock | |
| OM32134 | ER20 | 4.0-3.0 | £6.41 | In Stock | |
| OM32148 | ER20 | 4.5-3.5 | £7.86 | In Stock | |
| OM32135 | ER20 | 5.0-4.0 | £6.41 | In Stock | |
| OM32136 | ER20 | 6.0-5.0 | £6.41 | In Stock | |
| OM32137 | ER20 | 7.0-6.0 | £6.41 | In Stock | |
| OM32138 | ER20 | 8.0-7.0 | £6.41 | In Stock | |
| OM32139 | ER20 | 9.0-8.0 | £6.41 | In Stock | |
| OM32140 | ER20 | 10.0-9.0 | £6.41 | In Stock | |
| OM32141 Viewing | ER20 | 11.0-10.0 | £6.41 | In Stock | |
| OM32142 | ER20 | 12.0-11.0 | £6.41 | In Stock | |
| OM32143 | ER20 | 13.0-12.0 | £6.41 | In Stock | |
| OM33038 | ER20 | 13.5-13.3 | £18.52 | In Stock | |
| OM33039 | ER20 | 14.0-13.8 | £18.52 | In Stock | |
| OM33040 | ER20 | 14.5-14.3 | £18.52 | In Stock | |
| OM33041 | ER20 | 15.0-14.8 | £18.52 | In Stock | |
| OM33042 | ER20 | 15.5-15.3 | £18.52 | In Stock | |
| OM33043 | ER20 | 16.0-15.8 | £18.52 | In Stock |
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