Sidchrome socket and spanner sets have been designed with flexibility, quality and portability in mind. This 31 piece set includes a combination of 1/2" drive metric sockets, socket accessories and Ring and open ended spanners. These tools have been manufactured to meet and exceed international quality standards allowing them to withstand harsh working conditions on any worksite. The standard sockets and Ring spanners within this set feature Sidchrome's Torque Plus fastening system. This allows greater contact with the flats of fasteners, providing greater torque to enable easier fastening. The open end spanners feature Sidchrome's Anti Slip Design reducing slippage and knuckle injury.