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質問 Why is the tool setter used both dialing and energizing but different dimensions?
答え The tool setter M - 50 can be measured when the cutting edge touches because it is an energizing type,
When trying to measure a smalldoril, about 1.5 N of force is applied to the dorill by the dialgeage.
Therefore, the drill bends.
When measuring with a dial formula, the value of the length may come out short.
During cutting, because the cutting edge gets in due to the screw phenomenon, the hole becomes deeper than the measured value.

If you do not use a measuring device with small reaction force, machining failure will occur.
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