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18" x 24" x 4" Inspection Granite Tri-Square - Grade A 81968

Three-Face Granite Tri-Squares provide an excellent, economical way to check X, Y and Z axis alignment on CNCs and CMMs. They can also be used in the same way as a steel square for direct checking of squareness and straightness.

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  • Size LxWxT (in): 18 X 24 X 4
  • Grade (U.S.): A Inspection
  • Size LxWxT (mm): 450 X 600 X 100

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