1 x 3/8" SDS Plus Shank. 【3-JACK CHUCK】Drill chuck with universal 3-jaw design can firmly hold a variety of bit shanks from 2mm to 13mm;. 1 x 1/4" Hex Shank. 1 x 2-13mm Drill Chuck. 【DURABILITY】The chuck is high-precision threaded and tapers tightly with a hard, rust-resistant PP plastic body.
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