surface clamping chuck extra short SK40 20mm A35
• Tool holder DIN 69871 form AD / B
• Made of alloyed case hardened steel
• Hardened 58 ± 2 HRC, at least 0.5 mm deep
• Tensile strength in the core after case hardening approx. 950 N / mm²
• DIN 254 cone
• Taper angle tolerance AT3
• Surface accuracy of the cone Ra <0.001 mm
• Hole tolerance H5
• Runout accuracy <0.01 mm
• Balancing quality G 6.3 15000 min-1
• For holding tools with straight shank and lateral driving surface
Delivery: surface clamping chuck with built-in clamping screw, from Ø 25 mm with two clamping screws.
