03B091 - Walter 9/16-12 NC HSS Taper Tap for Steel and Aluminum

Precision Threading with Walter High-Speed Steel Taps

The Walter 03B091 9/16-12 NC Taper Tap is a premium threading tool engineered for industrial professionals who demand accuracy and longevity. Crafted from exceptional High-Speed Steel (HSS), this tap is designed to outperform and outlast standard carbon steel alternatives. The use of HSS ensures that the cutting edges remain sharp even under high thermal stress, making it an excellent choice for working with tough materials like stainless steel and mild steel, as well as softer metals like aluminum.

One of the defining features of this tool is its precision-ground threads. Unlike cut threads, ground threads offer superior dimensional accuracy, ensuring that the resulting internal threads mate perfectly with fasteners. This precision reduces the likelihood of cross-threading and ensures a tight, secure fit for bolts and screws. The tap has been meticulously hardened and tempered, a heat-treatment process that balances hardness for cutting power with toughness to resist snapping under torque.

The "Taper" style of this tap is specifically designed to aid in the starting of threads. With a chamfer that extends over 7 to 10 threads, the cutting load is distributed gradually. This feature makes it significantly easier to align the tap perpendicular to the hole surface and start the cut without struggling. It is the ideal choice for initiating new threads in through-holes or for the initial pass in deep blind holes before following up with a plug or bottoming tap. Whether you are manufacturing new components or performing critical maintenance and repair, the Walter 03B091 delivers the reliability and performance required for high-stakes industrial environments.

In summary, this Walter tap combines advanced metallurgy with exacting manufacturing standards. It provides a seamless cutting experience, reducing operator fatigue and tool breakage while delivering professional-grade results in a variety of metalworking applications.