Starrett 51457 Beveled Straight Edge 24 in Steel

Product Description

The STARRETT 51457 is a single-bevel straight edge machined from steel and used as a precision reference tool for layout, inspection, and surface checking work. At 24 inches in length, it delivers a verified edge flatness of 0.0004 inches and parallelism of 0.0008 inches, making it suitable for applications where a reliable, repeatable reference surface is required. The beveled edge reduces contact area to a defined line, improving accuracy when scribing or checking for gaps. Machinists, toolmakers, and precision measurement technicians are the primary users of this tool.

The 51457 is suited for use on machine tables, surface plates, and fabrication benches in job shops, maintenance departments, and manufacturing environments. Its 24-inch length covers a practical range for checking larger workpieces, sheet stock, or machine ways. The single beveled edge makes it straightforward to position and index against a workpiece without ambiguity about which edge is the reference surface. The steel construction provides durability for repeated shop use.

Key Features

• Edge flatness of 0.0004 inches for reliable precision reference work
• Parallelism held to 0.0008 inches across the full length
• Single beveled edge reduces contact to a defined line for scribing and gap checking
• Steel construction for durability in shop environments
• 24-inch overall length suits larger workpieces and machine surface checks
• Compact profile at 1-13/32 inches wide and 11/64 inches thick for easy handling and storage

Compatibility

Designed as a general-purpose precision straight edge for use on surface plates, machine tables, and fabrication setups where a beveled steel reference tool is required.

Installation Notes

No installation is required for this tool. Handle with clean, dry hands or lint-free gloves to avoid corrosion on the precision ground surfaces. Store flat or in a protective case to prevent warping or edge damage. Periodically verify the edge flatness against a calibrated surface plate per your shop calibration schedule.