"Industrial quality impact driver with switchable forward and reverse screwdriver rotation. When the impact resistant handle is struck with a hammer the downward force is converted by the impact driver's internal mechanism into a powerful high torque screwdriver rotation action. Ideal for ensuring fasteners are securely tightened and for freeing stuck fasteners. Hex drive nose pieces can be removed to allow use with 1/2"" square drive impact sockets. 5-Piece Set To suit 5/16"" hex and 1/2"" square drives. Complete with: Crosspoint: No.2 and 3. Flat Bits: 8 and 10mm. • Finish/Coating Satin • Handle Length 140mm • Number of Pieces 5 • Bit Type Included Crosspoint • Driver Head Size 1/2in."