Machine Dimensional

Granite Squares

Ceramic Squares 4-Sided

TAC Rockford ceramic squares provide a stable, durable, and highly accurate reference for precise squareness verification. Made from premium ceramic, they are non-magnetic, corrosion-resistant, and boast excellent thermal stability. Upgrade your quality control process with these lightweight and easy-to-handle precision tools.

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Granite Squares 4-Sided

Master Cylinders

TAC Rockford's Precision Master Cylinders are essential tools designed to serve as a reliable reference for verifying the perpendicularity and straightness on critical machine axes on high-precision machine tools and Coordinate Measuring Machines (CMMs).

Granite Master Cylinders

TAC Rockford Precision Granite Master Cylinders are the standard for verifying the perpendicularity, straightness, and runout of critical machine axes on high-precision machine tools and CMMs. Manufactured from select, high-density black granite, these cylinders offer unmatched dimensional stability and thermal inertness, making them essential for the most demanding metrology applications.

Machinist Precision Levels