fortis Insert sleeve Form-D DIN 69871ADSK40/MK4

- Tool holder DIN 69871 Form AD
- Made of alloy case hardening steel
- Hardened 58 ±2 HRC, min. 0.5 mm deep
- Tensile strength in the core after case hardening approx. 950 N/mm²,
- Taper DIN 254
- Taper angle tolerance AT3
- Surface accuracy of the taper Ra <0.001 mm
-
Concentricity <0.01 mm
- Balance quality G 6.3 at 15000 min-1
- To accommodate tools with Morse taper shank and expulsion flap