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All-in-one 18-18-3 Granite Master Square A-grade, 5-face Device [7HDRbMT4]

$105.99 $339.99 -69%

All-in-one 18-18-3 Granite Master Square A-grade, 5-face Device [7HDRbMT4]: Precision Tool for CNC and CMM Accuracy The All-in-one 18-18-3 Granite Master Square A-grade, 5-face Device [7HDRbMT4] is a premium tool designed for high-precision measurements in CNC machine tools and coordinate measuring machines

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All-in-one 18-18-3 Granite Master Square A-grade, 5-face Device [7HDRbMT4]: Precision Tool for CNC and CMM Accuracy

The All-in-one 18-18-3 Granite Master Square A-grade, 5-face Device [7HDRbMT4] is a premium tool designed for high-precision measurements in CNC machine tools and coordinate measuring machines. This master square boasts a unique five-face design, ensuring accurate checks for squareness and parallelism on all axes. With its robust black granite construction, this square provides unparalleled stability and accuracy, making it an essential tool for any precision engineering application.

Superior Construction and Specifications

Crafted from black granite, the 18-18-3 Granite Master Square A-Grade offers superior strength and density over lighter-colored granite, ensuring long-lasting durability. Each square features a large face and four edges that are flat, square, and parallel, with lightening holes to facilitate handling. The square is available in A Grade, with a remarkable accuracy of .0001", ensuring consistent and repeatable measurements. Additionally, each square comes with a Certificate of Calibration traceable to NIST, providing users with the confidence that their measurements are accurate and reliable.

Practical Applications and Benefits

The 18-18-3 Granite Master Square A-Grade is an invaluable tool for a wide range of applications. Whether you are working on CNC machine tools or coordinate measuring machines, this square is ideal for checking the X-Y-Z axes for squareness and parallelism. Its versatile design allows for the precise checking of perpendicularity and parallelism, making it an essential component for maintaining high-quality standards in your work. Whether you are a professional engineer or a hobbyist, this master square is a must-have for anyone who demands precision and reliability in their measurements.

What Our Customers Say

January 1, 2026

Absolutely no complaints!

It’s a very fine product. I do very, very highly recommend it.

- Urien J..

January 1, 2026

Absolutely no complaints!

It's a very solid, and a very, very, very, very nice product.

- Beli Y..

January 1, 2026

Absolutely no complaints!

I’m wowed by its ingenious simplicity.

- Lyra G..

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