uxcell 1/2"-20 UNF Mount 1.5-13mm Capacity Key Drill Chuck w SDS Plus Shank Product Name : Key Type Drill Chuck;Capacity : 1.5-13mm Mount : 1/2"-20 UNF;Chuck Size(Approx) : 5.7 x 4.2cm/2.24" x 1.65" (L*D) SDS Plus Shank Size : 70 x 12.5 x 17mm/2.76" x 0.5" x 0.7" (L*Thread Dia* Max.D);Key Size : 8 x 4 x 1.8cm / 3.1" x 1.6" x 0.7"(L*W*H) Color : Black, Silver Tone;Material : Metal Net Weight : 343g;Package Content : 1 x Drill Chuck,1 x SDS Plus Shank,1 x Key