The #MG-S278-4R Combination Square can determine 90° and 45° angles and measure distances up to 1 ft./305mm. It’s a favorite of toolmakers and machinists.
- Hardened square and center heads, with double-shoulder reversible beveled protractor head
- Square head has spirit level and hardened scriber
- Etched, high-carbon blade with satin chrome finish
- Meets U.S. Government Specification GGG-S-656C









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