Tap and Drill Chart
Most tap and drill charts don't make a distinction between thread-cutting and thread-forming taps, but the difference is important! Holes for thread-forming taps must be larger than those for thread-cutting. That's generally not a problem, but thread-forming taps are more common with small hole sizes.
Hole sizes in the tables below are for thread-cutting taps:
If you have specific questions about thread-cutting and thread-forming taps, feel free to email us at email@example.com
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