Pro-Series .626-.750" Pin Gage Handle Comfortable, easy to use and ergonomically made handle for pin gages. Made from powder coated aluminum. These gold handles can be used with a GO pin on the green end and a NO GO pin on the red or opposite end. Handles are clearly marked with the appropriate pin gage sizes. Each handle has two wide range collets featuring a spring adjusting and self-centering design. There is one collet at each end. These handles are suitable for a wide range of pin gage sets.