INSIZE 4707-300 Precision Steel Square, 12 x 8 in

The INSIZE Precision Steel Square with Wide Base is used by machinists and toolmakers to check and set 90° angles on workpieces, machinery, and fixtures. Its wide base provides stable referencing on surface plates or machine tables, ensuring accurate layout, inspection, and alignment in metalworking, woodworking, and quality-control applications.

The INSIZE 4707-300 Precision Steel Square has outside dimensions of 12 x 8 inches and is made of steel. It offers an inside accuracy of 0.0019 inches and an outside accuracy of 0.002 inches at 90°. The square comes in a protective box for storage. INSIZE manufactures this tool for reliable, repeatable angle measurement in industrial settings.

You can source the INSIZE Precision Steel Square 4707-300 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for pricing and lead time; we supply genuine INSIZE tools to procurement teams and maintenance shops internationally.

To maintain accuracy, keep the INSIZE steel square clean and dry, and store it in its box when not in use. Avoid dropping or striking the edges. Periodically check the 90° angle against a known reference, such as a granite surface plate. Lightly oil the surface if stored in humid conditions to prevent rust. Recalibrate if accuracy drifts.