The GripIt 20mm Flat Drill Bit is designed for accurate drilling of holes in plasterboard and drywall when installing 20mm Brown GripIt cavity wall fixings. Featuring a flat cutting head, it creates correctly sized holes to help ensure secure fixing installation. Suitable for use with standard power drills, this drill bit is ideal for plasterboard fixing applications, general DIY and installation work. Supplied loose as a single drill bit.