1" Drive 6 Piece Hex Driver Metric Set

.? Set contains one piece impact hex drivers ? Includes 6 pieces in sizes 14mm to 27mm ? Made from high quality chrome-molybdenum steel ? Heat treated for strength and durability ? Size markings are hard stamped into the socket for easy identification Impact Hex Bit Socket Set, 1" Drive, 6 Piece, 14mm to 27mm Hex Bits, 4" Long, in Blow Molded Case. Our impact sockets grip the fastener across a broader contact area, reducing chance of rounding off fasteners. They also allow up to 20% more torque to be applied than on other impact sockets. The shift in pressure allows us to reduce the socket wall thickness, increasing access to tight areas.