Dispatch Hours
Orders dispatched Monday to Friday between 8am and 5pm (4:30pm on Fridays).
- Mon – Thurs8:00 – 17:00
- Friday8:00 – 16:30
- Sat & SunClosed
The Omega Products BT40 ER Collet Chucks in mini type are designed to provide reliable and precise tool holding in BT40 spindle systems. With their compact size and lightweight construction, these collet chucks offer excellent balance and reduced tool overhang, resulting in improved machining accuracy and surface finish. The ER collet system allows for quick and easy tool changes, ensuring efficient workflow in high-speed machining operations. The chucks are capable of reaching speeds of up to 20,000 RPM, making them suitable for a wide range of machining applications. With a precision rating of G2.5, these collet chucks maintain tight tool concentricity and minimize runout, ensuring optimal cutting performance.

Click any SKU to view full product details, specifications and datasheets.
| Product SKU | Taper | Collet Size | Gauge Length | Form | Balance | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OM31334 | BT40 | ER11 | 70 | AD | G2.5@20000RPM | £42.40 | In Stock |
|
| OM31636 | BT40 | ER11 | 70 | AD/B | G2.5@20000RPM | £51.94 | In Stock |
|
| OM31335 | BT40 | ER11 | 100 | AD | G2.5@20000RPM | £42.40 | In Stock |
|
| OM31637 | BT40 | ER11 | 100 | AD/B | G2.5@20000RPM | £51.94 | In Stock |
|
| OM31638 | BT40 | ER11 | 160 | AD/B | G2.5@20000RPM | £83.81 | In Stock |
|
| OM30298 | BT40 | ER16 | 70 | AD | G2.5@20000RPM | £42.82 | In Stock |
|
| OM31639 | BT40 | ER16 | 70 | AD/B | G2.5@20000RPM | £51.94 | In Stock |
|
| OM31336 | BT40 | ER16 | 100 | AD | G2.5@20000RPM | £42.40 | In Stock |
|
| OM31640 | BT40 | ER16 | 100 | AD/B | G2.5@20000RPM | £51.94 | In Stock |
|
| OM31641 | BT40 | ER16 | 160 | AD/B | G2.5@20000RPM | £83.81 | In Stock |
|
| OM30287 | BT40 | ER16 | 200 | AD | G2.5@20000RPM | £106.09 | Next Day |
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Fast dispatch, clear delivery options and a friendly technical team on the end of the phone.
Orders dispatched Monday to Friday between 8am and 5pm (4:30pm on Fridays).
| Service | Cost |
|---|---|
| Royal Mail Tracked 24 | £5.90 |
| DPD Standard Next Day | £8.00 |
| Royal Mail Special Delivery by 1pm | £12.50 |
| DPD Saturday Delivery | £25.00 |
Saturday delivery available on orders placed before 4pm Friday. T&Cs and geographical exclusions apply (Republic of Ireland, Northern Ireland, Scottish Highlands, Channel Islands & others) — see our delivery page for full details.
If an item isn't right, sending it back is simple and hassle-free.
Read our returns policy →Our specialist team can advise on tooling choice, specifications and compatibility.
01732 887334 info@protool-ltd.co.uk