March 2022 Tip: Tapping and Threading Formulas

Today's download is a Tapping and Threading Formulas chart. You'll get formulas for inch taps as shown in the image below as well as for metric taps, and also two examples of tap drill size calculations for both inch and metric. This helpful chart is a must have for any machinist. Keep it on your phone or print it to keep in your toolbox. Contact me if you're unable to download the chart; I'll be happy to email it to you.

Tapping and Threading Formulas

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