Transfers the pressure from the thinnest part of the socket wall toward the thicker section, resulting in increased strength. Allows up to 20% more torque to be applied than on standard hex impact sockets. The shift in pressure allows less socket wall thickness, increasing access to tight areas. Sockets grip the fastener across a broader contact area, reducing the chance of rounding off fasteners. Packaged in a molded storage case. Sizes: 6mm, 7mm, 8mm, 10mm, 12mm, 14mm, 15mm, 17mm, 18mm, 19mm.