Made out of 708M40 alloy steel, borings rings are key for the machining out of soft jaws. This boring ring has easy adjustment to allow for jaws in different postions.
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