12" Master Precision Square
12" Blade x 7" Beam. With Standard Letter of Certification
Item #: STA 20-12 W/SLC
Starrett Series 20 Master Precision Squares
The Starrett 20 Master Precision Square is the finest precision-checking square – not graduated. This hardened steel square is 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.
- Length of blade is from the inner edge of the beam to the end of the blade.
- Squareness accuracy to .0001" every 6"
The Starrett 20 Master Precision Square is the finest precision-checking square – not graduated. This hardened steel square is 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.
Item Specifications
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L.S. Starrett
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7"
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12"
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Straight