Quality MaterialHigh strength keyless chuck made of HSS and ABS, very strong and durable, anti-abrasive, impact resistant. Size RangeThe chuck size should be adjusted between 2 and 13 mm, which is suitable for 2-13 mm drill bits. Easy to UseJust plug it in, hand tighten your standard drill bit and you are done, ready to use standard SDS drill bits, it provides excellent smooth and fluid action and more. Strong SupportWith unique thrust bearing, delicate design, for strong grip simply by tightening the chuck, tight and stable. RemovableThe adapter is removable, to replace it according to your needs, so you don't need to ask for extra drill bit. Perfect for Bosch SDS, GSB and GSR, electric hand drill, impact drill and more regular electric drill. Features: High quality material, durable, tough, durable and stable. Applicable scope: Suitable for 1050w power on impact drill. Multiply the utility of cordless impact drivers and wrenches to do the work of a regular electric drill. The unique torsion stop is easy to handle, resulting in better support. Chuck range: 2-13mm Package includes 1 x Keyless Detachable Chuck Chuck size: 42 x 73mm; Post size: 10 x 71mm Color: Black Chuck weight: 280 grams Single post weight: 42.4 grams Delivery quantity: 1 piece (with post) NOTE: The product can NOT be used counterclockwise! becomeveryrich