When you need to setup a machine, mark accurate layouts, do some drafting or checking straightness of your work piece for warping, this precision straight edge is the essential tool you need. The 5.00mm hardened steel blades are meticulously ground and lapped for straightness and parallelism, and they have a beveled knife edge with imperial 1/64in scales, which means they can be used as precision rulers. For storage they have a hanging hole as well as a protective case if you prefer to store them in a drawer. Accurate to 0.025mm over the length of blade.
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