Keyless Drill Chuck 13mm, 2 13mm 1/2 20UNF Mount High Speed Steel Heavy Duty Professional Converter Tool for AC/DC Impact Drill,

【CONCAVE AND CONVEX DESIGN】Beautiful and practical concave and convex design, so that the front and rear jackets can effectively cooperate and reduce the jacket shaking. 【EASY TO CLAMP TIGHTLY】This 13mm drill chuck has good metal texture and comfortable coat surface, easy to clamp, so that the output becomes larger. 【WITH UNIQUE THRUST BEARING DESIGN】The unique thrust bearing is easy to convert the applied by the handle into greater clamping force. 【WIDE APPLICATIONS】Keyless drill chuck is applicable to AC electric drills with power below 700W and various DC electric drills. 【WITH HEAT TREATMENT】Keyless drill chuck is with heat treatment, the drill chuck has good toughness and higher structural strength.