In addition to your standard milling vises, most workholding devices - things that hold onto the workpiece (part) - can be placed into one or more of the following three categories:

• Part stops are small workholding devices that are used to locate and hold a workpiece in a specific position on the milling machine table. They are typically made of steel and can be clamped or bolted to the table.

  • They allow the workpiece to be positioned accurately and repeatedly during the milling process. This is essential for precision machining, as even small variations in the workpiece position can affect the accuracy of the final product.

  • They can be used in conjunction with vises or other workholding devices to make a fixture by precisely & repeatably locating workpieces in 3-Dimensional Space.

• Generally speaking, there are two kinds of part stops:

• Simple clamping devices - such as vises - by themselves are not typically Fixtures, as they do not repeatably locate workpieces. However, there are things that you can use in addition to vises that can create a fixture...