Milwaukee High Carbon Steel SAE NC Plug Tap and Drill Bit Set — a focused, two‑piece solution built for metalworking precision. Designed for through‑holes and standard coarse threading, this kit delivers reliable performance when you need clean threads quickly and consistently.
Crafted from high carbon steel, this set is optimized for durability and wear resistance in tough metals. The SAE NC (National Coarse) plug tap ensures standard coarse threads that bite fast, making it ideal for rough or freshly drilled holes where speed and reliability matter. The accompanying drill bit pairs with the tap to streamline your workflow, so you can prep and thread in a single, efficient sequence.
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Two-piece kit with a plug tap and a drill bit, both forged from high carbon steel for lasting wear resistance.
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SAE NC threading tailored for quick, forgiving coarse threads in metalworking projects.
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5.75-inch length provides practical reach for common milling, fabrication, and automotive tasks.
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Carded packaging offers organized storage and easy on-shelf display.
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Milwaukee reliability—durable construction and consistent performance trusted by professionals.
Use cases
This set is well suited for automotive repairs, machinery maintenance, fabrication projects, and any metalworking task that requires dependable NC thread tapping. Whether you’re restoring a vehicle, fabricating a new frame, or simply enhancing a metal appliance, this Milwaukee kit helps you complete holes with threaded accuracy in steel and other hard alloys.
How to use
- Drill the pilot hole using the included drill bit with appropriate metal cutting lubricant to reduce heat and chip buildup.
- Position the plug tap and apply steady, forward pressure to start cutting threads. Maintain a smooth, even rotation to avoid chatter.
- Periodically back off to clear chips, then continue tapping to full depth. After threading, remove the tap and deburr the hole if needed.
Tips for best results
Keep the cutting edges sharp and use fresh cutting oil or lubricant designed for steel to extend tool life. Match the drill bit size to your target hole and tap size for the chosen SAE NC thread, and work with steady, controlled feeds to minimize tool wear and maximize thread quality.