| Thread Size | TPI | Tap Drill | Decimal | % Thread |
|---|
75% Thread: Standard engagement for most applications. Provides optimal strength-to-ease ratio.
Tap Drill Selection: Use the closest available drill size. When in doubt, go slightly larger for easier tapping.
Material Considerations: Harder materials may require slightly larger tap drills to reduce tap breakage.
Blind Holes: Consider using forming taps or backing out chips frequently to prevent tap breakage.