Why Tap Drill Size Matters
A tap drill that is too small increases torque; one that is too large reduces thread engagement.
Taps: selection checklist
- Match diameter and pitch to the recommended drill size.
- Allow for material and blind-hole conditions.
- Measure the first thread and adjust the process, not the tap by force.
How to choose the right option
- Stop and inspect the tool, workpiece and machine interface.
- Correct the size, geometry, setup or cutting condition involved.
- Run a controlled test and inspect the result before returning to production.
Shop the recommended collections
- Taps & Dies for Metal Threading
- Taps & Dies for Professional Work
- Twist Drill Bits for Metal
- Champion Cutting Tools
- Steel Cutting Tools Tools for Metal Drilling Tools & Drill Bits
- Threading Tools for Metal
Products to compare
- Carbon Hand Taps
- Champion 06541 iPAC 6-32 Tap & #36 Drill Combo
- Champion 06542 iPAC 8-32 Tap & #29 Drill Combo
- Champion 06543 iPAC 10-24 Tap & #25 Drill Combo
- Champion 06544 iPAC 10-32 Tap & #21 Drill Combo
- Champion 06545 iPAC 12-24 Tap & #16 Drill Combo
- Champion 06546 iPAC 1/4-20 Tap & #7 Drill Combo
- Champion 06548 iPAC 5/16-18 Tap & F Drill Combo
Continue learning
For production quantities, unusual sizes or help selecting the correct tool, request a quote from Cutting Tools Outlet.