Jaw force gages from Dillon Manufacturing Inc. allow users to accurately measure the force applied to each chuck jaw independently, so problems can be diagnosed and corrected before a failure occurs. The reading in pounds of chucking force per jaw is the holding force available for that specific jaw. With a force range from 0 to 30,000 lbs. (13,607.7 kg), the gages are suitable for chucks from 6" to 18" (152.4mm to 457.2mm).