Machine Dimensional

Granite Squares

Ceramic Squares 4-Sided

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