The Renzetti Jaw Clamping Screw is a larger more comfortable clamping knob to use on your Traveler or Presentation vises. After adding this knob, you will find it easier to lock your hooks in the jaw and with much greater range in pressure.
Note: We highly recommend if you are not going to consider switching your Traveler to a Cam Jaw , then this larger clamping screw is a must!