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20-3 Master Precision Square

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Product Details

The finest precision-checking squares – not graduated. Squareness accuracy to .0001” (0.0025mm) every 6” (150mm).

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.

  • Item Number: BI687
  • Global Item Number: 20-3
  • Size – Length of Inch**: 3
  • Size – Length of mm**: 75
  • Length of Beam Inch: 2-3/8
  • Length of Beam mm: 60
  • Fits Blade Size: 12” (300mm)
  • Status*: MTO
  • Country of Origin: USA

*MTO Made to order – Products subject to longer lead times when stock is not available.
MTO lead times: China: 90 days / USA: 120 days.
*MTS Made to stock (regular availability).
** Length of blade from the inner edge of the beam to the end of the blade.