General description This Draper 3/4' Square Drive Combined Metric and AF Socket Set includes 26 pieces, manufactured from hardened and tempered carbon steel with a polished finish. It comes packed in a convenient plastic storage case. Technical specifications Diameter: 5.5 mm Length: 150 mm Material: Hardened and tempered carbon steel Finish: Polished Compatibility and accessories Compatible with standard power drills and drill drivers Suitable for drilling into metal, wood, and plastic surfaces Installation Insert the drill bit into the drill's chuck and tighten securely before use Usage Use for drilling precise holes in various materials Ensure the drill bit is properly secured and use appropriate speed settings for different materials