uxcell 3/8-24 UNF Mount 0.8-10mm Capacity Keyless Drill Chuck Black Product Name : Keyless Drill Chuck;Capacity : 0.8-10mm/0.03-0.4" Mount : 3/8-24UNF;Chuck Size(Approx) : 5.5 x 4cm/2.2" x 1.6" (L*D) Color : Black, Silver Tone;Material : Metal, Plastic Net Weight : 172g Package Content : 1 x Keyless Drill Chuck