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Scraping PPI and Radius Gauge.

For hand scraping machine tool surfaces. It has a 1 square inch window for counting points per inch, and 4 radii.
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updated November 5, 2022

Description

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For hand scraping machine tool surfaces.  It has a 1 square inch window for counting points per inch, a 40, 60, 90 and 140mm radius sides to help you grind the appropriate radius on your scraping insert.

Model origin

The author marked this model as their own original creation.

License