Spacer sleeve for MT shank, with torque thread
• Made of alloyed case hardening steel
• Hardened 58 ± 2 HRC, min. 0.5 mm deep
• Tensile strength in core after case hardening approx. 950 N/mm²
• Taper DIN 254
• Taper angle tolerance AT3
• Concentricity < 0.001 mm
• Balancing quality G 6.3 at 15000 min-1
• Tool holder DIN 69871