Collet chuck TYPE ER Mini, DIN 69871, Form AD/B, SK 50, balancing quality: G2.5 12000 min-1
Design: 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. Taper to DIN 254. Hardened 58 ±2 HRC.
Taper angle tolerance: AT3 Taper surface roughness: Ra < 0.001 mm
Application: To mount tools with cylindrical shank to DIN 1835 B+E as well as DIN 6535 HB.
Scope of delivery: Collet chuck complete with clamping nut.