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20-12

20-12 Master Precision Square 50136

20 Master Precision Squares
Steel Master Precision Square, 12"

The Starrett 20 Master Precision Square is the finest precision-checking square. Squareness accuracy to .0001" (0.0025mm) every 6" (150mm). 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. 12" (300mm) Blade, 7" (180mm) Beam.

Features
Specifications
3D CAD Files / Exploded Parts Diagram
Product Testimonials
California Prop 65
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Features

  • 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.

Specifications

  • Made in America: Yes
  • Blade Length (in): 12"
  • Blade Length (mm): 300mm
  • Beam Length (in): 7"
  • Beam Length (mm): 180mm
  • Material: Steel

3D CAD Files / Exploded Parts Diagram

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Product Testimonials

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    California Proposition 65 Warning

      WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov