General description This is a 21mm socket designed for electrical connections. It is suitable for various DIY and home improvement projects requiring reliable and secure socket fittings. Technical specifications Socket diameter: 21.0mm Length: 38mm Weight: 93g Compatibility and accessories Compatible with standard electrical components requiring a 21mm socket Suitable for use with compatible connectors and fittings Installation Insert the socket into the designated connection point Ensure proper fit and secure connection before use Usage Use for electrical connections in DIY projects or home improvement tasks Ensure compatibility with existing electrical systems and components Other information Performance: conform to ISO 2725-1, DIN 3124 and NF ISO 2725-1 The FCMS21 socket has a 1/2in Drive to fit 1/2in ratchets High quality, ideal for tightening and loosening bolts, nuts, and other fasteners Available in a range of metric sizes