Set Includes: 3/8 x 5/16”, 1/2 x 7/16”, 5/8 x 9/16” & 3/4 x1 1/16”
Dual Flat Drive Technology - The dual flat ring end design allows for maximum contact between the tool and fastener. The extra contact means the applied torque can be increased and risk of damage to the fastener is decreased. SP Box Ring spanners wrap around and make more contact around fasteners and can often reach where other spanners can't. Small head profile designed for working in confined spaces. Tough triple chrome, high polish finish. Chrome Vanadium Steel (Cr-V) for high durability. Meets & exceeds international ANSI & DIN standard