4" Machinist Square The 4 inch machinist square delivers precision for design and layout work. Crafted from hardened carbon steel with high tolerance and a ground surface and edges, this 90-degree square ensures accurate right angles every time. Built to German DIN Standard 875 Grade 1, it serves as a trusted instrument for engineers, machinists, and workshop professionals. The compact 4" (100 mm) size pairs a sturdy base thickness of 15/32" (11.86 mm) with a consistent squareness across measurement tasks, resisting wear in daily use and delivering repeatable results. Hardened carbon steel construction for durability High tolerance for dependable squareness Ground surfaces and edges for accurate readings DIN 875 Grade 1 compliant for standardization 4" (100 mm) size with 15/32" (11.86 mm) base Perfect for layout, metalworking, woodworking, and design tasks that demand precise 90-degree angles. The 4 inch machinist square helps you mark, verify, and transfer lines with confidence—creating clean lines and tight fits across projects. Enhance your workflow by adding this square to your toolkit today.
