This set of sockets are impact ready making them suitable for use in both impact drivers and impact wrenches. They can be used with an impact driver right away thanks to the inclusion of a 1/4" hex to 1/2" square adaptor piece which is suitable for up to 72.5 Nm of torque. Everything is packaged in a blow-moulded case that has a spot for each piece. Each socket is labelled with the size in a clear laser engraving. The sizes included are 6mm, 8mm, 10mm, 11mm, 12mm, 13mm, 14mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 24mm and 27mm. Features: DeWalt Extreme impact sockets. Includes impact driver adaptor. Sizes from 6mm up to 27mm. Stored in a blow-moulded case. Smaller set also available (DT7507).