We are offering impact sockets. Features of impact sockets, accessorise and socket sets 1.standard, deep and thinwall sockets 2. up to 3.12" square drive impact sockets through to 235mm (9.18") across the flats 3. # 5 spline drive to 80mm (4") across the flats 4. Wide variety of accessories the benefits of the freecorner profile include are 1. Reduced risk of fastener rounding. 2. Increased chances of turning worn fasteners. 3. Elimination of high stress concentration points increasing the impact resistance and the torque transmitting capability.