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  4. Starrett 81961 Tri-Square 9 x 12 x 3 3-Face Granite, Grade AA

Starrett 81961 Tri-Square 9 x 12 x 3 3-Face Granite, Grade AA

Part Number:: 81961
MFG ID: 81961
Your Price $1,492.80
Retail Price:$1,555.00
Your Savings:$62.20(4%)
Starrett 81961 Tri-Square 9 x 12 x 3 3-Face Granite, Grade AA - Laboratory. Three-Face Granite Tri-Squares provide an excellent, economical way for accurately checking the X-Y-Z axes on CNC machine tools and coordinate measuring machines. Lying in the horizontal position, the X and Y axes can be checked for 90ยบ squareness. With the square in the vertical position, tracing along the vertical edge of the square can check the perpendicularity of the Z axis. Granite tri-squares may also be used in the same manner that steel squares would be used for the direct checking of squareness and straightness.

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