Starrett 20-24 Hardened Steel Master Precision Square, 12-5/16" Beam Length, 24" Blade Length
- Made of high quality tool steel
- Squareness accuracy to 0.0001" (0.0025mm) every 6" (150mm)
- The beam is grooved at the inner corner for clearance of burr or dirt
- Length of blade from the inner edge of the beam to the end of the blade
Details: This hardened steel square is used when extreme accuracy is required. The beams and blades are hardened, ground, and lapped to insure parallelism and straightness. Made of high quality tool steel, with the finest of craftsmanship throughout.