The Sidchrome Spanners feature the ANTISLIP Design features on the open end of the Sidchrome spanners, which is a locking groove to prevent slippage of a nut and bolt, which prevents knuckle injury. - The Sidchrome Sockets and Ring End of the Spanners feature the TORQUEPLUS system which allows the user to apply extra torque, TORQUEPLUS also reduces the risk of fastener rounding, provides a greater opportunity to turn worn, rounded fasteners and meets aerospace specification. - The Sidchrome Heavy Duty EVA Foam System has been designed so you don’t waste time looking for the right tool, with the red underlay foam allowing you to quickly identify any missing tools. - The carbon fibre covering is designed to withstand most workshop fluids, while screen-printed size measurements are easy to read and won’t rub off after cleaning. - Sidchrome has built its reputation on supplying tradespeople with high quality, premium and professional products that last a lifetime, which is evident through Sidchrome's lifetime guarantee against faulty workmanship and material on most products.72 Tooth Maintenance Free Pear Head Ratchet With Ergonomic Handle - Includes:1/2 Drive Metric & AF Sockets16x 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24mm11x 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1''Spark Plug Sockets2x 5/8, 13/16Extensions & Accessories 2x 125, 250mm1x Universal Joint1x 1/2 Sealed Head Ratchet - ROE Metric Spanners12x 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm