Walter 1 Inch - 12 NF High-Speed Steel Plug Tap

Reliable Threading for Heavy-Duty Fabrication

When you are in the middle of a fabrication job or a critical repair, a broken tap is the last thing you need. The Walter 1-12 NF Plug Tap (03B165) is built for welders and fabricators who demand tools that work as hard as they do. Crafted from heavy-duty High-Speed Steel (HSS), this tap is designed to bite into metal and cut clean threads without binding or snapping. It is the perfect solution for creating new threads in custom parts or chasing damaged threads in equipment repairs.

The "Plug" style design is the workhorse of the tapping world. With a chamfer of 3-5 threads, it aligns easily in the hole to get you started straight, but it cuts full threads quickly. This makes it ideal for threading through-holes in plates, brackets, and structural members. The 1-12 NF size indicates a 1-inch diameter with 12 threads per inch—a fine thread pitch that provides superior holding power and vibration resistance, often required in automotive and heavy machinery applications where bolts need to stay put.

One of the standout features of this Walter tap is its versatility. You don't need separate taps for every material; this single tool handles aluminum, mild steel, and even stainless steel with ease. The precision-ground cutting edges slice through the material rather than tearing it, resulting in professional-grade threads that accept fasteners smoothly. Whether you are tapping a mounting plate for a heavy fixture or repairing a stripped bolt hole on a piece of agricultural equipment, this tool provides the confidence and performance you need to get the job done right.

Built to Last

Cheap taps dull quickly and can ruin your workpiece. Walter's commitment to quality means this tap stays sharp, reducing the effort needed to turn it and minimizing the risk of breakage. Add this essential 1-inch fine thread tap to your shop's arsenal and handle large-diameter threading tasks with efficiency and precision.