For milling machine, lathe, drilling machine, wood working machine. The shank with scrw can be tight and flex for you. Should work with power drill, here is not included Model # a13030400ux0464 Features: Product Name : Key Type Drill Chuck;Main Material : Metal;Color : Black, Silver Tone Capacity : 1. 5-13mm;Mount : B16;Interior Hole Diameter : 16mm Body Diameter : 42mm/1. 65";Total Height : 55cm/ 2. 2" Chuck Key : 8 x 4cm/3. 1" x 1. 5" (L*W);Fit For : Carpentry Weight : 292g;Package Content : 1 x Drill Chuck.
