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CNC Turning Tolerances: What’s Reasonable, What Costs More, and What Risks Scrap

By Blog
Precision turned part being checked with a digital micrometer during dimensional inspection

Tighter CNC turning tolerances often require more inspection time and closer dimensional control.

A tolerance callout can be one of the biggest cost decisions on a turned-part print.

On a CNC lathe, tighter tolerances often mean slower cutting parameters, lighter finish passes, more in-process checks, and more final inspection. When that precision protects fit or function, it is worth it. When it is applied too broadly, it narrows the process window and increases both cost and scrap risk. Read More