Designed for heavy-duty screwdriving applications and precise drilling in various materials Highly efficient for installers, electricians, metalworkers, and woodworkers: Robust 1/4" Impact rated Hex shank for use in impact driver and drill driver For driving screws into various materials and drilling in construction materials, eg when installing all types of panels, equipment, and fixtures Scope of delivery: Bosch PRO Impact Screwdriving and Multi Construction Drilling Mixed Set, 40 pcs, Weight: 1.33159206248 pounds, Manufacturer: Bosch