Kurt: DoveLock Jaws
The DoveLock Quick Change Jaw System from Kurt is reversible, and allows milling into the changeable jaw plates using the full volume of jaw material. It also gives allows for the machining of multiple steps on the same pair of jaw plates. By rotating the jaw plates and machining different steps on both sides, fewer jaw plates are required for those jobs requiring different steps.
It is available as a two component system consisting of two master jaws with four, low head socket cap screws and a hex T wrench, and a machinable jaw set consisting of two machinable aluminum jaw plates.