L.S. Starrett Company
VerifiedPrecision tool manufacturer founded in 1880 by Laroy S. Starrett in Athol, Massachusetts, where the company still produces its flagship combination squares, steel rules, and measuring instruments. Laroy Starrett invented the combination square in 1880 and began making it in Athol that same year. Today the company operates five US manufacturing facilities, with the Athol plant remaining the heart of precision measuring tool production.
Products by L.S. Starrett Company
3 products listed
$18-$28C616R-12 12" Spring Tempered Steel Rule
A 12-inch spring-tempered precision steel rule manufactured at Starrett's Athol, MA facility. The C616R-12 features 16R graduations — 32nds, 64ths, aircraft 50ths, and 100ths — photo-engraved and filled black for permanent legibility. The satin chrome finish reduces glare during fine layout and measurement work favored by machinists, toolmakers, and woodworkers.
$95-$14511H-12-4R 12" Combination Square with Square Head
A traditional Starrett 12-inch combination square with a cast iron head, produced at the Athol, MA facility. The 11H series delivers machinist-grade precision with a reversible lock bolt, scriber, and built-in spirit level on a machine-divided satin chrome steel blade. A cost-accessible companion to the premium C33H for woodworkers, machinists, and tradespeople who demand American-made accuracy.
$130-$185C33H-12-4R 12" Combination Square with Square Head
Starrett's premium 12-inch combination square with a forged and hardened steel head — the same design Laroy Starrett patented in 1880 and still built at the Athol, MA factory. The C33H features a reversible lock bolt, scriber, spirit level, and a photo-engraved satin chrome blade with 4R graduation (8ths, 16ths, 32nds, 64ths) for precise layout work in woodworking, metalworking, and general carpentry.