Sidchrome spanners are extremely durable and can withstand harsh working conditions on any worksite. The ring end of the spanner features 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 of the spanner features Sidchrome's Anti Slip Design reducing slippage and knuckle injury and allowing for quicker fastening.