This helps tighten those pesky Adel clamps just enough to fit a bolt and nut. Insert an awl through both holes in the yoke, install a vise (with two U-shaped flats) to press the two ends of the yoke together, and tighten just enough to remove the awl and free the bolt and nut can install. Remove the vise and all you have to do is tighten the clamp. They easily pay for themselves when replacing the motor, you save a lot of time, especially with large induction tube clamps and wire bundle clamps.