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.
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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.
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