Blade Length: 36"/910mm
Beam Length: 20"/500mm
20-36 Starrett Master Precision Square: 36"/910mm
The Starrett 20-36 master precision square has the following specifications:
These hardened steel squares are used when extreme accuracy is required. The beams and blades are hardened, ground and lapped to ensure parallelism and straightness. The beam is grooved at the inner corner for clearance of burr or dirt. Made of high quality tool steel, with the finest of craftsmanship throughout. Starrett Master Precision Squares is the finest precision-checking non-graduated square with ac curacy to .0001" (0.0025mm) every 6" (150mm). This hardened steel square is used when extreme accuracy is required.
Starrett Series 20 Master Precision Squares:
Starrett Series 20 Master Precision Squares with Standard Letter of Certification: