- Low friction due to needle bearings.
- Protected with anti-corrosion coating.
- Dust-tight and watertight.
- Very high clamping force prolongs tool life and improves surface quality.
- Centred tool clamping with optimum concentricity.
- Internal coolant feed.
Long tool life. Vibration damping properties. High stability due to strengthened clamping nut.
For clamping tools with plain shanks.
Coolant tube No. 309880, collets No. 309566 − 309570 and No. 309575 − 309576, wrench No. 309747 for No. 305539.