3/8" Thread Drill Chuck, Drill Chuck, Keyless Metal 13mm for DC Electric Drills AC Electric Drills

The unique thrust bearing is easy to convert the applied by the handle into greater clamping force. The unique thrust bearing is easy to convert the applied by the handle into greater clamping force. Beautiful and practical surface concave and convex design, so that the front and rear jackets can effectively cooperate and reduce the jacket shaking. With heat treatment, the product has good toughness and higher structural strength. Scope of application: Applicable to AC electric drills with power below 700W and various DC electric drills.