Walter 4-40 NC High Speed Steel Taper Tap

Reliable Thread Repair and Fabrication Tools

When you are in the middle of a fabrication project or repairing critical equipment, a stripped thread or a missing bolt hole can bring work to a standstill. The Walter 4-40 NC Taper Tap (SKU: 03A041) is an essential addition to any welder's or mechanic's toolbox. Built from durable High Speed Steel, this tap is designed to cut through stubborn materials without dulling prematurely. It is perfect for creating new threads in brackets, plates, and custom fixtures, or for cleaning up damaged threads to salvage expensive parts.

The taper style of this tap is specifically designed for ease of use. The gradual entry allows you to start the thread manually with less effort and greater control, ensuring the tap goes in straight. This is particularly helpful when working by hand with a tap wrench in tight spaces where machine alignment isn't possible. The 4-40 National Coarse (NC) thread size is a common standard for small fasteners, making this tool highly versatile for electronics, small machinery, and detailed metalwork.

Walter Surface Technologies is known for producing tools that work as hard as you do. This tap features precision-ground flutes that effectively evacuate chips, preventing clogging and binding during the threading process. Whether you are tapping into aluminum, mild steel, or stainless steel, this tool provides the bite and strength needed to get the job done right the first time. Keep your shop prepared for any threading challenge with this high-performance HSS tap.