Shaft diameter 20 mm (standard) Max. Bending radius 60 mm Max. Bending capacity steel 12 x 1.5 Stainless steel 12 x 1 Copper soft 16 x 1 Length feed (accuracy): with electrical drive 0.1 mm Rotation (accuracy): with electrical drive 0.1 ° Three-jaw chuck: Yes Voltage NC 2 / NC 3: 230V / 400V