We leave the jaws soft so that if you need to cut into them to separate the carrier of multiple parts to eliminate a sawing operation, you can mill right into the jaw without damaging the cutter. DO NOT mill into the grips, they are hardened, of course, and will damage your cutters.
*We will be offering a case hardened version of the steel jaws, very soon, for those applications needing additional resistance from wear and damage from heavy steel or stainless steel parts, or heavy handed operators.
