Setup Block: 0.0003 Squareness, Hardened Steel, 1-2-3 Block MPN:52-439-031

The 0.0003 squareness tolerance, made of hardened steel, 1-2-3 Block is a versatile tool used in machinist and metalworking applications for calibration, layout and machine setup tasks. Its unique design enables users to position parts or other tools easily at 0, 90 and 45 angles without the need for complex calculations, saving valuable time while improving accuracy on the job. A must-have for precision engineers or professionals who require quick angle measurements, this durable block can handle heavy-duty applications with consistent reliability across many industries like aerospace, automotive and general manufacturing where accurate settings are critical in ensuring quality control measures succeed.