Zither sales corporation manufactures a range of manually operated self centering chucks for use on conventional machines. These are available in alloyed high strength cast iron bodies or steel bodies [for high rotational speeds]. Crankshaft grinder chucks, model crc 3, are available in size range 160 mm to 250 mm. These chucks are available in 3 jaw variety and are generally used for holding cranks. The gripping portion is made wide which has serrations to ensure high grip. One set of reverse jaw is supplied with each chuck.
