Professional spanner extension bar for commercial or occasional home use Spanner extension bar with 1/2in drive connectionAs well as 1/2in drive it also can be used with a 21mm spanner Handy tool for improving access and power when using a spanner in a restricted or awkward place Designed to extend the spanner with another spanner to create more leverage Sturdy construction prevents the spanner from slipping Extends the length of the spanners when you need more power / force to remove stubborn nuts and boltsPower bar extension spanner wrenchSuitable for use with all sized spannersFor use with any measurement of spanner so metric, imperial, Whitworth etc…1/2in drive cut out at the end of the spanner designed to use with either a 1/2in drive ratchet / power bar etc…Universal useManufactured from Chrome Vanadium steel for maximum strength and durabilitySimple to use, simply put the spanner in the end for instant useDesigned so a spanner can be sued with a ratchet or breaker bar which gives a greater choice of angles to access the fixings as well as extra purchase for stubborn fixingsSPECIFICATIONS•Spanner extension bar •Suitable for all sized spanners•Material – Chrome Vanadium Steel•Anti rust material •Drive size – 1/2in. •For use with ratchet or power bar•Can also be used with a 21mm spanner •Hardened steel•Total length – 3 Inch / 75mm.