Starrett 50134 Precision Steel Square 6 Inch Blade

Product Description

The STARRETT 50134 is a precision steel square designed for high-accuracy layout, inspection, and verification work in industrial and trade environments. With a blade length of 6 inches (152.40 mm) and a base length of 4-5/16 inches (109.54 mm), this square delivers an accuracy of 0.0001 inches (0.0025 mm), making it suitable for applications where even minor angular deviation is unacceptable. Constructed from steel, it is built to withstand repeated use in shop and field conditions. Machinists, tool and die makers, pipefitters, sheet metal workers, and precision trade technicians rely on this type of instrument for confirming true right angles on workpieces, fixtures, and assemblies.

The STARRETT 50134 is suited for use in machine shops, fabrication facilities, plumbing rough-in work, and any trade environment requiring precise 90-degree reference checks. It is appropriate for both bench inspection and layout tasks on metal, wood, or composite materials. The compact base length makes it practical for checking smaller workpieces or confined surfaces without sacrificing the accuracy required for close-tolerance work.

Key Features

• Blade length of 6 inches (152.40 mm) for versatile layout and inspection reach
• Base length of 4-5/16 inches (109.54 mm) for stable seating on workpiece edges
• Accuracy of 0.0001 inches (0.0025 mm) for precision angular verification
• Steel construction for durability in shop and field environments
• No bevel edge design maintains a clean reference surface

Compatibility

Designed as an OEM-style precision measuring square for general trade and industrial use wherever a 6-inch blade steel square is the specified instrument.

Installation Notes

No power source or mechanical installation is required for this instrument. Handle the square carefully to avoid dropping or striking it, as impact can affect calibration accuracy. Periodically verify accuracy against a certified reference square or surface plate per your shop quality procedures. Keep the square clean and lightly oiled to prevent corrosion on the steel surfaces.