Stone cylindrical right angle gauge

Made of black gabbro.
As the standard for squareness measurement, it maintains high accuracy.
Used to measure the right angles of installation fixtures and tools, the right angles of products, etc.
Because the contact surface with the workpiece is a line on a circular surface, extremely precise measurements can be made.

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Made of black gabbro.
As the standard for squareness measurement, it maintains high accuracy.
Used to measure the right angles of installation fixtures and tools, the right angles of products, etc.
Because the contact surface with the workpiece is a line on a circular surface, extremely precise measurements can be made.

Stone cylindrical right angle gauge inquiry