A spline-shaped box end turns spline, hex, and 12-point fasteners with minimal effort. This shape also gets a better grip on rounded fasteners that can be difficult to turn with a traditional wrench. These wrenches have a ratchet mechanism that allows you to turn fasteners in tight spaces without removing and repositioning. Flip over to ratchet in the opposite direction. Wrenches are polished for a mirror-like finish.

For technical drawings and 3-D models, click on a part number.