Precision Chucks APC, BT* with Flange contact. Highest gripping force due to integrated worm gear transmission. Easy exchange of tools by setting of hex-key. Maintenance free. Sealed against coolant and contamination. Slow collet taper angle. Gripping torque. Runout accuracy 3 μm at 2.5 x D and standard length. Clamping of tool shanks according to DIN 1835 A, B and DIN 6535 HB, HA as well as HE up to D = 20 mm.