The Starrett 4" Combination Square with Square Head boasts a reversible lock bolt and a hardened steel, photo-engraved blade with a regular finish. This product also includes a cast iron head with a black wrinkle finish. The square measures 4" and has a 4R graduation, with a regular blade.

The square head features a precision-ground 90° square face and a 45° miter face, making it a highly versatile layout tool. It can be used for scribing right angles and parallel lines, as well as a measuring tool that functions as a tri-square, miter, depth gage, height gage, and level.

Starrett precision measuring tools have been the industry standard for high-quality dimensional measuring tools since 1880. These powerful tools meet or exceed the accuracy and performance requirements of national and international standards, and are traceable to the United States National Institute of Standards and Technology.

The L.S. Starrett Company, founded in 1880, manufactures more than 5,000 variations of Precision Tools, Gages, Measuring Instruments, and Saw Blades for industrial, professional, and consumer markets worldwide. The Starrett 11H series Combination Squares consist of a machine-divided, hardened and tempered steel rule with an adjustable square head. The heads are cast iron with a reversible lock bolt and scriber.

The value of Starrett Tools lies in their accuracy and durability, designed to withstand even the harshest environments and last a lifetime. The 4R graduation type with 8ths, 16ths, quick-reading 32nds, and 64ths significantly enhances the accuracy of your measurements.

Starrett squares are versatile layout tools suitable for a variety of purposes, from toolmaking and mechanics to carpentry and DIY projects. The hardened steel blade offers exceptional durability and resistance to wear, rough usage, high-impact pressure, and shock, ensuring reliable performance for any project you undertake.

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