Mill Work Holders - 4: Interchangeable Vise Jaws
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WARNING: Machine tools present a safety hazard. Improper operation can result in severe injury. These topics are for non-laboratory study only and are not to be used in conjunction with the operation of any tool or machine described herein. Never use a machine tool without the supervision of a qualified instructor.
Nearly any mill vise has jaws that can be removed from it to install other jaws. However it is best to make sure that the vise used conforms to a standard Kurt configuration of height, width, bolt size, and center to center bolt distance. If it does then a whole series of interchangeable jaws can be used. In this topic and in the videos the brand shown are "Snap Jaws" but there are many brands.

To remove vise jaws, simply find the appropriate Allen wrench and loosen the 4 bolts that hold the vise jaws. Then remove the four bolts completely. The jaws can now be removed.

Vises can be fitted with many types of vise jaws that will make the job easier for a specific operation. To install snap jaws in the vise:


  • Insert a set of special screws that come with the jaws
  • Tighten them by hand until they reach the depth of the groove existing on the jaws.
  • Insert the jaws so that their grooves sit on top of the special screws.
  • Use an Allen wrench to tighten the screws that will hold the jaws in place.
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label: Milling machine, work holding, clamps, regidity, precision, vise, alignment, edge finder, DRO, interchangable vise jaws, sanp jawa, collet, chuck, jogs, modular fixturing, table clamps