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Outside Micrometers for Screw Threads
Measure thread accuracy in screw-cutting operations. The anvil and spindle have a 60° point for fitting into thread grooves. This micrometer has a plain thimble, which relies on operator feel for accurate measurements.
Outside Micrometers for Screw Threads with Calibration Certificate
This micrometer comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. Use it to measure thread accuracy in screw-cutting operations. The anvil and spindle have a 60° point for fitting into thread grooves. It has a plain thimble, which relies on operator feel for accurate measurements.