What size does it take?
- Supplied uk collet
- 1/4 inch
- Supplied collet part
- 2 608 570 142
- Compatible collet sizes
- 6 mm, 8 mm, 1/4 inch (separate collets)
- No-load speed
- 10,000–30,000 rpm
- Battery voltage
- 18 V
Use 1/4 inch shank cutters with the supplied UK collet. A 6 mm or 8 mm cutter requires its own approved matching collet.
Bosch 1/4 inch collet with nut for GKF 18V-8
For GKF 18V-8 with 1/4 inch cutter shanks; the 6 mm and 8 mm options are separate collets.
Part-number search; an exact Amazon listing has not been verified. Read the manufacturer evidence and fitting checks.
Replacement parts for this model
Bosch 1/4 inch collet with nut for GKF 18V-8
Bosch UK lists 1/4 inch collet with nut 2 608 570 142 in the GKF 18V-8 package contents, including UK order 0 601 6C2 070.
- This is a replacement collet assembly, not a router cutter.
- Match the exact tool model and manufacturer part number; a collet from another router is not interchangeable by shank size alone.
- Use only cutters whose shank matches the fitted collet, within the tool manual’s cutter and speed limits.
Manufacturer reference for this model · checked 2026-10-03
Check before buying
- Match the cutter shank exactly to the approved collet actually installed; 6 mm is not 1/4 inch and 12 mm is not 1/2 inch.
- Check maximum cutter diameter, insertion depth and the chosen base in the tool manual.
- Keep the selected tool speed within the cutter’s rating and follow the maker’s material and feed guidance.
Source & scope
Bosch Professional UK GKF 18V-8 package contents and technical data
Source checked 2026-10-03. This page records published specifications; it is not a hands-on review or a guarantee for every accessory sold under these dimensions.
Report a specification correction