Starrett Combination Square Set,2 Pc 11H-12-4R

The STARRETT 11H-12-4R is a 2-piece combination square set that includes a 12 in steel combination blade and a cast iron square head. It is used for measuring and layout work, and features a reversible lock bolt, built-in scriber, and spirit level. The blade has a regular finish with black etched graduations in inch units, and the head has a black wrinkle finish. Key Features: 12 in blade: Steel blade sized for general measuring and layout tasks. 4R graduation scale: Front graduations include 8ths, 16ths, quick-reading 32nds, and 64ths in inch units. Etched black graduations: Photo-engraved/etched markings are designed for clear reading. Square head: Cast iron head with black wrinkle enamel finish. Reversible lock bolt: Allows the blade to be secured in position. Built-in scriber and spirit level: Adds marking and leveling functions to the square head. Accuracy: Rated to +/- .0025 in with squareness tolerance of +/- 0.002 in and straightness tolerance of 0.001 in/ft. Blade dimensions: 3/4 in wide and 0.08 in thick.