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🔩 Thread & Tap Drill Charts

Tap drill sizes for UNC, UNF, and Metric threads. Search by thread size.

Unified National Coarse (UNC)
ThreadTPIMajor ØTap DrillDrill Ø~% Thread
Unified National Fine (UNF)
ThreadTPIMajor ØTap DrillDrill Ø~% Thread
Metric Coarse
ThreadPitch (mm)Major ØTap Drill (mm)~% Thread

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