fortis Collet chuck ER DIN 69893 A HSK-A 63-25 x 75 mm

- Tool holder DIN 69893 Form A
- Made of special case hardening steel
- Hardened 58 ±2 HRC
- Tensile strength in the core after case hardening approx. 1000 N/mm²,
- Surface accuracy of the taper Ra <0,001 mm
- For clamping of cutters with cylindrical shank in collets according to DIN 6499
-
Concentricity accuracy <0,003 mm
- Balancing quality G 2.5 at 25000 min-1