Ergonomic: Drywall screwdriver auto-feed attachment for comfortable and fast working even in difficult positions thanks to its ergonomic design and light weight User friendly: Quick and easy depth setting and tool-less screw length adjustment Superior tool lifetime: Open design for easy cleaning and longer lifetime The new GMA 55 is compatible with all Bosch Professional drywall screwdrivers and cordless drywall screwdrivers such as GTB 18V-45, GTB 12V-11 or GSR 18 V-EC TE Items included: 1 x screwdriver bit (bit) Ph 2, Weight: 0.8598028218 Pounds, Manufacturer: Bosch Professional