Wright Tool 6 Point Socket Set 11 Piece 1/4" Drive Metric 256The 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 4" drive sockets 11 Piece set Set includes: 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, and 14mm sockets Includes rail and 11 clips