Combination face mill adaptor, DIN 69871, Form AD/B, SK50 Design: Precision 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. Taper according to DIN 254. With transverse and longitudinal grooves. All functional surfaces machined and guaranteed quality thanks to double 100 % control. Taper tolerance: AT3 Hardened: 60 –2 HRC Application: For clamping shell end mills DIN 841 and DIN 1880 as well as single angle milling cutters DIN 842 and face mills DIN 1830. Scope of delivery: Face mill adaptor complete with milling cutter lock screw, driving ring and fitted key.