Manufactured to surpass the performance test BS2558: 1954. The sockets locate directly onto the handle relieving stress on the rivet. All sockets are plated, hardened and stress relieved to ensure they retain their shape. Double Ended Swing Over Spanner Swingover handle spanner with a 7/16” Whitworth socket end and 1/2” socket end for use on fixings. Suitable for use with all popular scaffold fixings used in the UK. Overall length: 320mm. Bar diameter: 15mm. Socket size: 7/16”W x 1/2”W.