Grizzly H2682 - Master Machinist's Level - 8" x .0005" Per 10"

These incredibly accurate levels are used for setting up lathes, milling machines and other fine machinery. They measure to 0.0005" (half a thousandth of an inch) within a 10" span. If you even put a newspaper page under your machine, the bubble will move! Every machinist must have one.