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Omega Products BT40 ER Collet Chuck - ER20 - 20,000RPM - G2.5 - 70mm Gauge Length - Form AD
| Taper | BT40 |
| Collet Size | ER20 |
| Gauge Length | 70 |
| Form | AD |
| Balance | G2.5@20000RPM |
Learn more about Klarna
The Omega BT40 ER Collet Chuck with ER20 compatibility is a reliable tool holder designed for BT40 spindle systems. Built for professionals who demand consistent precision, it delivers secure tool clamping and stable performance across a range of CNC milling tasks.
- Spindle compatibility: Designed for BT40 spindle systems to ensure a snug, repeatable fit.
- Collet size: ER20-compatible chuck for secure grip on compatible cutting tools.
- Maximum speed: Rated up to 20,000 RPM to support efficient material removal and diverse milling operations.
- Precision: G2.5 and G6.3 ratings provide tight concentricity and minimal runout for clean finishes.
- Gauge length: 70 mm gauge length offers stable projection and rigid alignment during cuts.
- Form: Form AD interface for reliable seating and repeatable accuracy across setups.
- Durability: Precision-crafted construction designed for repeated clamping cycles and long-term use.
When you clamp tools with this chuck, you gain improved cutting stability, better surface finishes, and more predictable tool life. The combination of tight runout control and a substantial 70 mm gauge length reduces vibration in demanding passes, while the Form AD interface supports quick, dependable tool changes in busy shops. Ideal for precision drilling, pocketing, and finishing passes on metal and composite materials, this chuck helps professionals achieve consistent results and efficient workflows.
| Taper | BT40 |
| Collet Size | ER20 |
| Gauge Length | 70 |
| Form | AD |
| Balance | G2.5@20000RPM |
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 BT40 ER Collet Chucks
View full collection →You are viewing OM31045. Click any other SKU to view its full details.
| Product SKU | Taper | Collet Size | Gauge Length | Form | Balance | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OM31038 | BT40 | ER16 | 100 | AD | G2.5@20000RPM | £30.95 | In Stock | |
| OM31039 | BT40 | ER16 | 150 | AD | G2.5@20000RPM | £55.48 | In Stock | |
| OM31040 | BT40 | ER16 | 160 | AD | G2.5@20000RPM | £55.48 | In Stock | |
| OM31342 | BT40 | ER16 | 200 | AD | G2.5@20000RPM | £79.87 | In Stock | |
| OM31042 | BT40 | ER16 | 70 | AD | G2.5@20000RPM | £27.51 | In Stock | |
| OM31643 | BT40 | ER16 | 100 | AD/B | G2.5@25000RPM | £43.68 | In Stock | |
| OM31535 | BT40 | ER16 | 120 | AD/B | G2.5@25000RPM | £51.94 | In Stock | |
| OM31644 | BT40 | ER16 | 160 | AD/B | G2.5@25000RPM | £66.11 | In Stock | |
| OM31645 | BT40 | ER16 | 200 | AD/B | G2.5@25000RPM | £97.98 | In Stock | |
| OM31642 | BT40 | ER16 | 70 | AD/B | G2.5@25000RPM | £40.14 | In Stock | |
| OM31043 | BT40 | ER20 | 100 | AD | G2.5@20000RPM | £31.88 | In Stock | |
| OM31954 | BT40 | ER20 | 120 | AD | G2.5@20000RPM | £48.40 | In Stock | |
| OM31044 | BT40 | ER20 | 150 | AD | G2.5@20000RPM | £55.48 | In Stock | |
| OM31045 Viewing | BT40 | ER20 | 70 | AD | G2.5@20000RPM | £27.51 | In Stock | |
| OM31046 | BT40 | ER25 | 100 | AD | G2.5@20000RPM | £30.95 | In Stock | |
| OM34007 | BT40 | ER25 | 120 | AD | G2.5@20000RPM | £46.03 | In Stock | |
| OM31047 | BT40 | ER25 | 150 | AD | G2.5@20000RPM | £55.48 | In Stock | |
| OM31048 | BT40 | ER25 | 160 | AD | G2.5@20000RPM | £55.48 | In Stock | |
| OM31343 | BT40 | ER25 | 200 | AD | G2.5@20000RPM | £79.87 | In Stock | |
| OM31050 | BT40 | ER25 | 70 | AD | G2.5@20000RPM | £27.51 | In Stock | |
| OM31646 | BT40 | ER25 | 100 | AD/B | G2.5@25000RPM | £43.68 | In Stock | |
| OM31647 | BT40 | ER25 | 160 | AD/B | G2.5@25000RPM | £66.11 | In Stock | |
| OM31648 | BT40 | ER25 | 200 | AD/B | G2.5@25000RPM | £97.98 | In Stock | |
| OM34005 | BT40 | ER25 | 70 | AD/B | G2.5@25000RPM | £40.14 | In Stock | |
| OM31344 | BT40 | ER32 | 200 | AD | G6.3@15000RPM | £79.87 | Next Day | |
| OM31345 | BT40 | ER32 | 250 | AD | G6.3@15000RPM | £110.85 | In Stock | |
| OM31051 | BT40 | ER32 | 100 | AD | G2.5@20000RPM | £30.95 | In Stock | |
| OM31052 | BT40 | ER32 | 120 | AD | G2.5@20000RPM | £46.03 | In Stock | |
| OM31053 | BT40 | ER32 | 150 | AD | G2.5@20000RPM | £55.48 | In Stock | |
| OM31054 | BT40 | ER32 | 160 | AD | G2.5@20000RPM | £55.48 | In Stock | |
| OM31056 | BT40 | ER32 | 70 | AD | G2.5@20000RPM | £27.51 | In Stock | |
| OM31536 | BT40 | ER32 | 100 | AD/B | G2.5@25000RPM | £42.49 | In Stock | |
| OM34006 | BT40 | ER32 | 120 | AD/B | G2.5@25000RPM | £51.94 | In Stock | |
| OM31537 | BT40 | ER32 | 160 | AD/B | G2.5@25000RPM | £66.11 | In Stock | |
| OM34004 | BT40 | ER32 | 70 | AD/B | G2.5@25000RPM | £40.14 | In Stock | |
| OM31058 | BT40 | ER40 | 150 | AD | G6.3@15000RPM | £55.48 | In Stock | |
| OM31346 | BT40 | ER32 | 300 | AD | G6.3@15000RPM | £123.97 | In Stock | |
| OM31057 | BT40 | ER40 | 100 | AD | G2.5@20000RPM | £31.88 | In Stock | |
| OM31060 | BT40 | ER40 | 100 | AD | G2.5@20000RPM | £73.19 | In Stock | |
| OM31059 | BT40 | ER40 | 80 | AD | G2.5@20000RPM | £28.34 | In Stock | |
| OM31650 | BT40 | ER40 | 100 | AD/B | G2.5@25000RPM | £43.68 | Next Day | |
| OM31952 | BT40 | ER40 | 160 | AD/B | G2.5@25000RPM | £66.11 | In Stock | |
| OM31649 | BT40 | ER40 | 80 | AD/B | G2.5@25000RPM | £40.14 | In Stock |
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