Chuck adapter DIN69871A SK50/SK40

Reducing sleeve DIN 69871, Form AD

Design: Balanced. Made of alloy case-hardened steel, with a core tensile strength of approx. 950 N/mm² and a hardness depth of min. 0.5 mm. Hardened 60 –2 HRC. All functional surfaces machined.

Taper tolerance: AT3.
Balancing quality: G6.3 8000 min-1.

Application: For mounting steep taper tools according to DIN 69871 SK 40 and JIS B 6339 BT 40.