SPI Cylindrical Master Squares (30-546-6)

$188.00

Swiss Precision Instruments (SPI) 6″ x 3-3/16″ Cylindrical Master Squares.

Constructed out of a single piece in the form of a cylinder. Heat-treated and precision ground. Virtually indestructible. Squareness .000030″ per inch.

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SPI Cylindrical Master Squares Features:

  • Constructed out of a single piece in the form of a cylinder.
  • Heat-treated and precision ground.
  • Virtually indestructible.
  • Squareness .000030″ per inch.

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