Drill Bits / 29/32 Diameter
What size drill bit for 3/4 NPT Tap?
A 45/64" drill bit (.9062" diameter) is the correct drill bit for 3/4-14 NPT pipe taps which have 14 threads per inch. The 3/4 NPT is a tapered thread designed for a seal. The 3/4-14 NPT thread is a popular thread sizes used in liquid and gas plumbing applications. It is used in homes, commercial buildings, and industrial businesses for water plumbing and compressed air systems.
Here is a summary of the features of the 29/32 drill bit size:
- 45/64" (0.9062" or 23.02mm) cutting diameter.
- Made in the USA from cobalt.
- Drill Points: 135 degree included angles.
- Cutting Edges: 2 flutes.
- Drill Lengths: Silver & Deming.
- Coatings: Gold Oxide.
Please note the quantities on hand. We have live inventory, so your orders can ship today before 4:30 EST.





