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Surface Finish Calculator app for iPhone and iPad


4.4 ( 5264 ratings )
Utilities Productivity
Developer: ITAMCO
0.99 USD
Current version: 1.0.0, last update: 7 years ago
First release : 12 May 2014
App size: 1.6 Mb

Surface Finish Calculator converts values between speed, corner radius, and surface finish value.

Enter two of the values in the appropriate input fields, and see the resulting values.


IPR = Inches Per Revolution
Ra = Surface Finish value in average microinches