Extends the length of clamping studs. These nuts are manufactured from S45C(JIS) / CK45(DIN) heat treated to HRC 30-35 and have a black oxide surface finish.
381 mm three jaw power chuck with 117.5mm through hole and max speed of 2500rpm. Grip Range (mm): 381 max, 30 minJaw Stroke (diameter mm): 10.6Max Gripping Force (kN): 180Lubrication nipple on each master jaw