Taft-Peirce Three-Axis Reference Square

Taft-Peirce Square, 24" × 40"

1 product

The Taft-Peirce Three-Axis Reference Square is a premium precision master square built for the most demanding squareness and layout work. Machined and ground on multiple faces, it serves as a large-format reference standard for checking machines, fixtures, and workpieces against a true 90-degree datum in the shop or inspection lab.

Offered through Suburban Tool, this Taft-Peirce square is trusted by machinists, tool & die makers, and QC/inspection teams who need dependable results. Like a cylindrical square or cylinder square, it establishes squareness across three axes for confident setups and grinding.

  • Taft-Peirce premium precision, Made in USA
  • Large 24" x 40" reference square
  • Multi-face, three-axis squareness standard
  • Ideal for machine, fixture, and part inspection

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