Clamping range: 1.5-13mm (1/16-1/2 inch);Fitment:1/2-20UNF;Stem Type: SDS PlusThe SDS drill chuck comes with chuck key, made of all metal for supreme durability and good rust resistance.Classic 3-jaw keyed design securely holds a wide range of rotary and step drill bits with a 1/16" to 1/2" shank.The drill chuck with SDS plus shank quickly connects to the impact driver and converts to drill function.Note: The product cannot be used counterclockwise!Needs to be transferred to "hammer drill stalls", when you use hammer chuck, other stalls will lead chuck broken! Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store