Milwaukee High Carbon Steel SAE Straight Plug Tap 1/4-20 NC

Milwaukee High Carbon Steel SAE Straight Plug Tap 1/4-20 NC is crafted for metalworking pros and serious DIYers who demand durable, precise internal threads. Built from high carbon steel and finished in black oxide, this plug tap delivers long-lasting cutting edges and dependable performance in demanding materials.

Why this straight plug tap stands out

• Durable material: High carbon steel provides enhanced edge retention and toughness, making it a reliable choice for recurring tapping tasks.
• True, clean threads: Straight plug geometry delivers consistent pitch engagement and accurate internal threads for secure fastener fitment.
• Corrosion resistance and reduced friction: Black oxide finish helps resist rust and minimizes galling during the tapping process.
• Size you can count on: 1/4-20 NC taps are a common size for many metalworking projects, enabling quick authentication of threaded holes for standard hardware.
• Compact and ready to travel: 2.5-inch tap length makes it suitable for tight workspaces, portable toolkits, and service carts.
• Convenient packaging: Sold as a single piece in clamshell packaging, with drill bit not included, so you can pair it with your existing tapping setup.

How to use

1. Secure your workpiece firmly in a vise or press to prevent movement during tapping.
2. Drill the appropriate pilot hole for 1/4-20 NC threads (note: drill bit is not included with this tap).
3. Apply a suitable tapping fluid to the bit and hole to reduce friction and extend tool life.
4. Insert the tap and begin turning clockwise with steady, even pressure to cut the internal threads.
5. Periodically back off to clear chips, then continue until threads are fully formed. Deburr the entrance and clean the hole.

Ideal for automotive, machinery, and general steel fabrication projects, this Milwaukee plug tap is perfect when you need a dependable, ready-to-use tool that delivers repeatable results. It’s particularly well-suited for repairing threaded holes or adding new threads in metal enclosures, brackets, and housings where a robust tap is required.

Compared to other taps, this Milwaukee 1/4-20 NC straight plug tap emphasizes durability and consistent performance in metalworking environments. The high carbon steel composition provides better wear resistance, and the black oxide finish offers practical protection in common workshop conditions—without sacrificing the precision you expect from Milwaukee.