Spline drive Breech Lock Bushings 2 pack. New, easy grip splined drive surface allows easy, accurate and fast die installation in your press. No need for lock rings on your dies with these quick-change bushings. Simply lightly tighten the clamp screw, and split collar will put a vise lock on your die. Loosen the screw, and the die will spin freely. Once set you’ll never lose position.

They look so good and work so well, you’ll want them for all your dies.