1.【Capacity Range】2-13mm(1/15-1/2 Inch); Mount Thread: 1/2-20UNF
2.【Keyless Design】With keyless design-drill chuck, easily lock bit or tools by hands,save your time and energy.
3.【Ideal Drill Conversion Tool】The SDS-Plus bits, 1/4" hex shank lock key, 1/2 inch socket square female adapter can easy to transform power impact wrench to a drill or grinder in seconds.
4.【Class 3-Jaw Design】Class 3-jaw design allows you to effortlessly hold round-shank drill bits from 2mm to 13mm securely.
5.【Durable】With high precision threaded and tapered tightly with rust-resistant cr-coated body and sleeve electrophoretic enameling coating,it is very durable widely used for heavy duty drill work as to hard material such as drill hole on wall or stone.