Impact Socket 21mm 3/8in Drive 12 Point Cr-Mo Steel

A 21mm impact socket for use with 3/8in drive tools, made from chrome molybdenum steel for impact-rated fastening work. Useful when you need a durable socket for removing or tightening 21mm fixings with powered or hand-operated drive tools.

Used across garage work, workshop jobs, vehicle maintenance and general repair tasks, this socket suits anyone working on common fasteners where a 21mm size is needed. It can be kept with an impact wrench kit, ratchet set or servicing tools for regular maintenance, fitting work and mechanical jobs where a standard socket may not be suitable for repeated impact use.

The 3/8in drive size makes it suitable for matching square drive tools and accessories already in your kit, while the 21mm socket size keeps selection straightforward for the fastener you are working on. Chrome molybdenum steel is widely used for impact wrench sockets, and it helps this one cope with tougher workshop use than a standard hand socket. The 12-point design lets the socket locate on the fastener in more positions, which is useful where access is tight. For regular servicing and repair work, keeping the correct single size close to hand also helps avoid unnecessary switching between mismatched sockets.

Impact socket specifications

• Size: 21mm socket for matching 21mm fasteners.
• Drive fitment: Made for 3/8in drive tools and accessories.
• Material: Chrome molybdenum steel construction.
• Socket pattern: 12-point design for locating on the fastener in more positions.
• Use: Suitable for impact wrench, garage and workshop applications.

A practical choice for regular maintenance and repair work.