Meet the Milwaukee High Carbon Steel SAE Straight Taper Tap in 3/8-18 NPT — a purpose-built tool for serious metalworking. Designed to deliver precise, durable internal threads for pipe fittings and hydraulic components, this tap is a reliable addition to any shop wanting dependable threading performance.
Material and finish: Crafted from high carbon steel for wear resistance and extended tool life, with a black oxide finish that reduces friction and helps resist corrosion in demanding workshop environments. The result is cleaner cuts, longer edge life, and smoother operation batch after batch.
Design and suitability: This taper tap features a straight-style configuration to support stable threading in tougher materials, with gradual thread engagement that eases starting and minimizes the risk of cross-threading. The 3/8-18 NPT size is a common standard for many piping and fluid-handling applications, making it a versatile choice for both maintenance and fabrication projects.
What you need to know for a successful job: The drill bit is not included, so pair this tap with the appropriate tap drill and a reliable drill/reamer setup to ensure clean, accurate threads. Its compact 3.25-inch length fits through plates and shorter workpieces while still delivering solid threading performance.
Key benefits in real-world use
- Durable, wear-resistant high carbon steel construction that withstands repeated tapping sessions
- Black oxide finish for smoother cutting and better protection in damp workshop conditions
- 3/8-18 NPT threading capability, a common standard for fittings and throttling components
- Carded packaging for easy display and organized storage in a busy shop
- No drill bit included — ensures you select the exact tapping setup you need
Specifications at a glance
- Brand: Milwaukee
- Product Type: Taper Tap
- Material: High Carbon Steel
- Finish: Black Oxide
- Style: Straight
- Tap Size: 3/8-18 NPT
- Length: 3.25 inches
- Packaging Type: Carded
- Drill Bit Included: No