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The L.S. Starrett combination square, protractor, and centre finder from August 1883 is a collectible and vintage tool that showcases the craftsmanship and precision of American manufacturing. Made by Starrett in the United States, this unique piece serves multiple purposes with its included protractor and centre finder features. Perfect for collectors or enthusiasts of mechanical tools, this item holds historical significance and embodies the quality standards of the late 19th century. It is a rare find that reflects the evolution of precision engineering in the United States.
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L.S. Starrett Combination Square No. 492 Protractor.The bubble is intact and working.
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Extra Combination Square (no level) for free to set.
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This is the top-tier Starrett combination square set — the C434 hardened steel head version, not the more common cast-iron model. • 4R graduation – Starrett’s most versatile imperial pattern (1/8, 1/16, 1/32, 1/64), ideal for both woodworking and precision engineering.
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Features multiple heads with level bubbles and rulers.
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Manufacturer : L.S. Starrett. Blade Material : Steel. Durable construction: Made from cast iron and steel. Beam Material : Cast Iron. Weight : 1.2 lbs. Product Information.
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