Stanley 70-384E Shallow Offset Bi-Hex Ring Spanner 12 x 13 mm

The Stanley 70-384E is a 12 x 13 mm shallow offset bi-hex ring spanner, with a 12 mm ring at one end and a 13 mm ring at the other. It is forged from high-grade chrome vanadium steel and given a protective matt finish. Stanley designs it for exact fitment and minimal slipping on nuts and bolts, and its Maxi-Drive system helps reduce fastener rounding. Stanley builds this ring pana for torque efficiency and durability in demanding mechanical and maintenance applications.