Master Alignment Square

Buy 5-Face or 6-Face Precision Master Square or 3-Face Tri-Square in grades A (accurate within 0.0001") or AA (accurate within 0.00005") . Calibrates Axis on CNC machines, milling machines and coordinate measuring machines.

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Precision Granite Master Square 12 x 12 x 3 Grade AA or A Precision Granite Master Square 14 x 14 x 3 Grade AA or A Precision Granite Master Square 16 x 16 x 3 Grade AA or A Precision Granite Master Square 18 x 18 x 3 Grade AA or A Precision Granite Master Square 24 x 24 x 4 Grade AA or A Precision Granite Master Square - (Custom Size) Granite Tri Square