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
BT40 Parallel Milling Cutter Arbors provide a reliable and precise solution for holding parallel milling cutters in BT40 spindle machines. With a maximum speed rating of 25,000 RPM and a G2.5 precision rating, these arbors deliver exceptional rotational stability and accuracy during high-speed machining operations. They are designed to accommodate parallel milling cutters with diameters ranging from M8 to M16, offering versatility for a wide range of milling applications.

Click any SKU to view full product details, specifications and datasheets.
| Product SKU | Taper | d | D1 | D2 | Thread | Reach | Balance | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|---|
| OM34702 | BT40 | 8.5 | 13.8 | 13.8 | M8 | 50 | G2.5@25000RPM | £87.98 | In Stock |
|
| OM34705 | BT40 | 10.5 | 18 | 18 | M10 | 50 | G2.5@25000RPM | £87.98 | In Stock |
|
| OM34706 | BT40 | 10.5 | 18 | 18 | M10 | 75 | G2.5@25000RPM | £95.77 | In Stock |
|
| OM34707 | BT40 | 10.5 | 18 | 18 | M10 | 100 | G2.5@25000RPM | £109.14 | In Stock |
|
| OM34709 | BT40 | 12.5 | 21 | 21 | M12 | 50 | G2.5@25000RPM | £87.98 | In Stock |
|
| OM34710 | BT40 | 12.5 | 21 | 21 | M12 | 75 | G2.5@25000RPM | £95.77 | In Stock |
|
| OM34711 | BT40 | 12.5 | 21 | 21 | M12 | 100 | G2.5@25000RPM | £109.14 | In Stock |
|
| OM34713 | BT40 | 17 | 29 | 29 | M16 | 50 | G2.5@25000RPM | £87.98 | In Stock |
|
| OM34714 | BT40 | 17 | 29 | 29 | M16 | 75 | G2.5@25000RPM | £95.77 | In Stock |
|
| OM34715 | BT40 | 17 | 29 | 29 | M16 | 100 | G2.5@25000RPM | £109.14 | In Stock |
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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