Dapetz ® Engineers Square 450mm Durable Steel Building Engineering Ruler Worskshop DIY, Hardened Steel Blade, Accurate on Inside & Outside Edges and Precision Ground for Accuracy.

EASY TO USE: The ruler has clear laser fonts, is not easy to wear, and is durable, effectively preventing scale corrosion. Ergonomic double-sided reading device, comfortable to use. MATERIAL: The ruler are made of hardened stainless steel with polished surface, rust resisting and durable. The metric and imperial scales are both marked on the ruler by laser beam, clear to read. WIDE USAGE: The ruller is very suitable for engineers, carpenters, craftsmen and architects to create perfect lines, precise angles and measurement, perfect for DIY and professional use. SIZE: The square ruller is 450mm Manufactured to DIN875/1. WHAT YOU GET: One Engineers Square 450mm Tri Square., Weight: 5.0 pounds, Manufacturer: Dapetz