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Omega Products ER20 Collet Standard Precision - 10 Micron Run-Out - 3.5mm - 2.5mm
| Collet Size | ER20 |
| Clamping Size | 3.5-2.5 |
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Precision that stays centered through every cut. The Omega ER20 Collet Standard Precision is engineered for dependable clamping in ER20 collet chucks, delivering a consistent 10 micron run-out for general purpose machining. Designed to cover clamp diameters from 2.5 mm to 3.5 mm, this collet ensures your tooling remains coaxial and your projects stay on target from the first pass to the last.
Key advantages you’ll notice in practice:
- Ultra-low run-out for cleaner finishes: With a verified 10 micron run-out, your drill bits and small end mills stay precisely centered, reducing chatter and improving surface quality.
- Tight, reliable holding over a compact range: The clamping window of 2.5–3.5 mm is ideal for small-diameter tooling, ensuring secure grip without slippage during high-speed machining.
- Rugged build for daily workshop use: Precision-machined slots and a robust steel body resist deformation under heavy cuts, preserving accuracy over time.
- Versatile with standard ER20 chucks: Built to mate with common ER20 collet chucks, adapters, and workholding setups found in home shops and professional shops alike.
- Versatile for multiple materials: Ideal for aluminum, brass, plastics, and select steels where precise diameter control matters for fit and finish.
Use cases
From delicate drilling operations to finishing passes on small-diameter tools, the Omega ER20 Collet Standard Precision keeps your tooling centered and your tolerances tight. Ideal for miniature manufacturing, model making, electronics enclosures, and precision prototyping where concentricity and repeatable clamping matter most.
Why choose this ER20 collet? It’s a purpose-built solution for machinists who value consistent run-out, reliable gripping force, and compatibility with a broad range of ER20 chucks. If you’re upgrading an existing setup or specifying parts for a precision-focused project, this standard precision ER20 collet delivers predictable, repeatable results every time.
| Collet Size | ER20 |
| Clamping Size | 3.5-2.5 |
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 OM32147. 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 Viewing | 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 | 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 | Next Day | |
| 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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