Keyless Drill Chuck, 0.512 In

Keyless Drill Chuck, Medium Duty, Mounting Type 2JT, Closed Length 4.03 In, Open Length 3.65 In, Chuck Diameter 1.85 In, Capacity Max. 0.512 In, Capacity Min. 0.039 In, Construction Steel, For Use With For Professional Hand Held Drilling Machines and With Tapered Mounts For Stationary Drilling Machines Medium-DutySelf-tightening feature automatically increases gripping force proportional to increased torque, preventing tool shank slippage in clockwise rotation. Automatic fitting eases quick tool changes.Keyless ChucksDesigned for high accuracy applications on conventional or CNC equipment.