Drill America POU1/8NPTW/DRILL NPT Pipe Tap and Drill Set 1/8 Inch
- 2 pieces: a 1/8 inch NPT tap and an R drill bit
- 4 flutes, straight flute tap
- 3.18 millimeter cutting diameter
- 0.13 inch minimum bore diameter
- Carbon steel, uncoated
- Square shank
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A matched tap and drill pair for cutting a small pipe thread, listed for iron, plastic and steel. It threads one size only, and the listing gives no tap wrench or case.
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ASIN: B01M4RXY21Model: POU1/8NPTW/DRILLCategory: Threading Tools
Overview
Drill America supplies this two-piece set so the hole and the thread come from one source. The R drill bit opens the pilot hole, then the straight flute tap, with a pointed point, cuts the pipe thread on its square shank.
Matching the drill to the tap is the reason to buy a set, since the hole size decides whether the thread forms cleanly. The limitation is that it covers one thread size, and cutting steel by hand calls for oil and a steady turn.
Who it's for
Machinists and maintenance technicians adding a small pipe port to a part get the two cutters that go together. Anyone threading deep holes in hardened steel should look for a coated or higher alloy tap.
Pros and cons
- Tap and drill paired in one set
- Listed for iron, plastic and steel
- Straight flutes for through holes
- Square shank fits a standard tap wrench
- Single thread size only
- Tap wrench not included
- Uncoated finish offers no wear protection
- Case or storage not listed
Performance notes
The drill sets the hole diameter and the tap cuts the thread into the wall, so a clean hole gives a clean thread. Straight flutes work best in through holes because chips do not clear upward in a blind hole. Uncoated carbon steel dulls faster than coated or high speed steel, so cutting oil and slow turning help.
Specifications
| Brand | Drill America |
|---|---|
| Model | POU1/8NPTW/DRILL |
| Dimensions & fit | |
| Cutting Diameter | 3.18 Millimeters |
| Minimum Bore Diameter | 0.13 Inches |
| Construction & materials | |
| Material Type | Carbon Steel |
| Finish Types | Uncoated |
| Included components | |
| Number Of Pieces | 2 |
| Unit Count | 1.0 Count |
| Other details | |
| Shank Type | Square |
| Tool Flute Type | Straight |
| Number Of Flutes | 4 |
| Set Name | 1/8 inch carbon steel NPT tap and R HSS drill bit set |
| Surface Recommendation | Iron, Plastic, Steel |
| Point Style | Pointed Point |
Frequently asked questions
How should I care for the Drill America 1/8 inch NPT tap?
The listing gives no care instructions. It does show carbon steel with an uncoated finish, so there is no surface coating to protect it.
What materials can the Drill America POU1/8NPTW/DRILL cut?
The listing recommends iron, plastic and steel.
What is in the Drill America POU1/8NPTW/DRILL set?
Two pieces: a 1/8 inch carbon steel NPT tap and an R HSS drill bit.