Mill Vise Parallel Keepers

A commonly available accessory for a milling machine to help hold parallels in place when working. The parallels you have must be the same width as your vise jaws to fit properly. These can be purchased or made easily but why not print them?

Magnet hole is a press fit for a 3/8" dia. 1/8" thick neodymium magnet. Magnet polarity isn't important.