Highcool Earl 5/8" Drill Chuck with Shank & Integrated Chuck Jaw Tightening Key (-B18)

Highcool Earl model -B18 drill chuck supplied with a shank and an integrated chuck jaw tightening key. Manufactured from 40CR steel and heat-treated to a hardness of HRC60 for extended service life. Clamping capacity: 3-16mm (1/8"~5/8"). Shank compatibility: fits drill presses or lathe spindles that accept a shank. Maximum ... does not exceed. accuracy: 0.005 inches. Component: Chuck jaw tightening key.