Walter 7/8 Inch 9 NC HSS Plug Tap

Heavy-Duty Thread Repair and Fabrication Tool

When you are in the middle of a fabrication job or repairing heavy machinery, a stripped thread can bring everything to a halt. The Walter 7/8"-9 NC Plug Tap is built to get you back up and running fast. Constructed from industrial-grade High-Speed Steel (HSS), this tap is tough enough to cut through mild steel, stainless steel, and aluminum without losing its edge. For welders and fabricators, having a reliable tap that won't snap under pressure is vital, and Walter's reputation for quality ensures this tool can handle the rigors of the shop floor.

The plug style design of this tap makes it the versatile workhorse of threading tools. It features a gradual taper at the tip (covering 3-5 threads) which helps align the tap into the hole and start the cut smoothly. This is significantly easier to use than a bottoming tap, especially when doing hand tapping in awkward positions on large weldments. While it is perfect for creating new threads in through-holes, it is also excellent for chasing and cleaning up rusty, painted, or damaged threads in existing equipment. The 7/8"-9 NC specification creates coarse threads, which are preferred in heavy industrial applications for their resistance to cross-threading and stripping and their faster assembly time.

Don't settle for cheap carbon steel taps that dull after a few holes. This Walter HSS tap is hardened and tempered to resist heat buildup, meaning you can work efficiently without compromising the tool. Whether you are tapping a mounting plate, repairing a fixture, or fabricating a custom bracket, this tool provides the bite and durability needed to cut clean threads every time. It pairs perfectly with standard tap wrenches and cutting fluids to deliver professional results in the toughest environments.