Precision machinist's square built to stay accurate for a lifetime.
Last verified: July 2026 · scored by the Made to Last method
Expected lifespanDecades
Typical price$60
Cost per year$2.40/yr
Warranty~Decades
Starrett has made precision measuring tools in Massachusetts since 1880. A combination square is hardened, accurate, and holds its calibration for decades — a tool machinists buy once.