3/8" Keyless Drill Chuck 0.8mm-10mm Thread 3/8-24UNF Large Clamping Force Metal Drill Chuck for Hand Electric Drill and Impact Drills with One Power

structural strength With heat treatment product has toughness and structural strength locking function locking function breaks with traditional locking method with ratchets on the back locking plate is installed in the back sleeve which can prevent loosening and loosening in the work in holding the tool clamping force thrust bearing makes it easy to convert the torque applied by the handle to clamping force metal texture comfortable coating Scope of application it is suitable for impact drills with power 1050W