A Starrett machinist try square mounted on a 4" rule. Expect minor evidence of use or imperfections, dings etc. from age. We have been giving quality service to the on-line collector community for over 19 years.
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Combination Square, Number of Pieces 2, Blade Finish Satin, Blade Material Steel, Head Length 3 in, Head Width 9/16 in, Blade Length 4 in, Blade Thickness 0.08 in, Blade Width 3/4 in, Graduation Mark Style Etched, Graduation Marks - Front 1/64 in, Head Type Square, System of Measurement SAE, Head Material Cast Iron, Head Vial Included Yes, Accuracy +/- .0025 in, Blade Coating Chrome, Features Reversible Lock Bolt, Graduation Color Black, Graduation Scale 4R, Graduation Units Millimeters.
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The protractor does have the patent mark/number but it is worn/faded but you can just make out the date 1883. Also the combination square has the scribe/pin and the fluid spirt level is unbroken and fully functional.
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• Protractor head. STARRETT – HARDENED – No. 4R GRAD. Graduations include the standard Starrett 4R scale. Starrett 12” Combination Square Set – Made in USA. This is a quality machinist tool set made in the USA and includes multiple heads.
eBay
eBay
eBay