3.016MM 1220UNF Drill Chuck Adapter Kit Key Type Drill Chuck with Square Shank Adapter

Features: Highaccuracy thread and tapered holes can be tightly attached to the tool. The housing is treated with electrophoretic paint, making the product antirust even in worst environment. By using antithrust bearing to convert keyapplied torsion into superior gripping. The clamping jaws are specially treated to improve wear resistance. 316mm 1220UNF: 316mm denotes that clamp the drill between 3mm and 16mm, and 1220UNF represents a screw hole with 1220UNF at the back of the chuck. Specification: Clamping range: 316mm 0.120.63in Package List: 1 * Drill Chuck 1 * Key 1 * Electric Hammer Square Shank Adapter . Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Highaccuracy thread and tapered holes can be tightly attached to the tool. The housing is treated with electrophoretic paint, making the product antirust even in worst environment. By using antithrust bearing to convert keyapplied torsion into superior gripping. The clamping jaws are specially treated to improve wear resistance. 316mm 1220UNF: 316mm denotes that clamp the drill between 3mm and 16mm, and 1220UNF represents a screw hole with 1220UNF at the back of the chuck.