uxcell 1/2-20 UNF Mount 2-13mm Capacity Keyless Drill Chuck Black Product Name : Keyless Drill Chuck;Capacity : 2-13mm/0.08"-0.5" Mount : 1/2-20UNF;Chuck Size(Approx) : 62 x 43mm/2.4" x 1.7" (L*D) Color : Black, Silver Tone;Material : Metal, Plastic Net Weight : 241g Package Content : 1 x Keyless Drill Chuck