Stanley Proto JSBV2428 Double Box Racheting Spline Wrench 3/4 X 7/8

Spline fasteners help tighten high strength bolts which are used in high torque load applications. | Spline helps reduce foreign object debris (FOD) by having a precise fit between the fastening tool and its fastener. | Black chrome finish is corrosion resistant and visually distinctive. | Ratcheting spline box end is countersunk for easy application to the fastener. | The fractional spline wrenches can be used on fractional 4, 6, 12 point and spline fasteners., Imported