Thread plastic pipe inside and outside in a single drill pass with SteelTight 2-in-1 Threader, a single tool that delivers clean internal and external threads without swapping bits or reworking joints.
Flip the head to switch between external threading on a pipe end and internal threading inside a socket. No separate dies or adapters are needed, and there’s no second tool to hunt for mid job.
Crafted from 40Cr alloy steel, the cutting edges stay sharp and grip firmly, producing centered, full-depth threads that bite and seal under pressure. It works with common plastic lines like PPR, PVC, MPP, and other plastic pipe, so you can tackle water lines and conduit runs with one tool for any material.
Drive with a 6.35 mm hex shank that fits into standard drills. The head is a single, solid piece that cuts both sides in one pass: one end forms the external thread and the opposite end cuts the internal thread when flipped—so you never need a second die or extra tool.
Available sizes are 1/2 inch (DN15) and 3/4 inch (DN20). Match the pipe to the size, insert the hex shank into your drill, align the head with the pipe, and cut with steady, low-speed rotation for clean, even threads. The hardened 40Cr steel resists dulling through repeat use, ensuring consistent results from the first thread to the last cap.
Three steps to reliable threads: Step 1 — choose the correct size for your pipe (1/2 inch or 3/4 inch or DN15/DN20) and mount the hex shank in your drill. Step 2 — place the head on the pipe, apply steady pressure, and run the drill at a low, even speed to cut the thread. Step 3 — back off, inspect the thread, and flip the head if the opposite thread is needed. The tool is designed for dry seals and consistent performance across plastic pipes.
| SteelTight 2-in-1 Threader | Single-Function Dies | Hand Cutters & Makeshift Tools |
|---|---|---|
| ✅ Internal & external threads from one tool | ❌ One die per thread — buy and carry two | ❌ Uneven threads you re-do by hand |
| ✅ 40Cr alloy steel stays sharp, grips tight | ❌ Dulls and starts slipping with use | ❌ Slips and chews the pipe |
| ✅ Runs off any standard drill — fast, even cuts | ❌ Often manual — slow, tiring on repeat jobs | ❌ Inconsistent across pipe materials |