Wright Tool 6 Point Impact Socket Set 12 Piece 1/2" Drive Metric 460The Wright Drive 6 point moves the contact area away from the corners, creating greater strength, more torque. Its circle diameter reduces fastener rounding and allows better grip on undersized fasteners and previously rounded corners. Greater strength, torque and gripping power Ten times more fastener contact 1 2" drive impact sockets 12 Piece set Set includes: 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, and 21mm sockets