03B052 - Walter 5/16-18 NC HSS Plug Tap for Steel and Stainless

Precision High-Speed Steel Threading

The Walter 5/16-18 NC Plug HS Tap (SKU: 03B052) is a high-performance threading tool designed for industrial maintenance, fabrication, and machine shop environments. Engineered from premium High-Speed Steel (HSS), this tap is built to withstand the thermal stresses and abrasive nature of cutting threads in tough metals. Unlike standard carbon steel taps, Walter's HSS composition ensures the cutting edges remain sharp longer, providing a significant advantage in production environments where tool longevity and consistency are paramount.

This specific tool is a "Plug" style tap, featuring a chamfer of 3 to 5 threads. This design makes it the most versatile choice for general threading operations, particularly for through holes where the chips can be pushed forward or for blind holes where threading to the very bottom is not critical. The threads are precision ground, not just cut, which guarantees accuracy in pitch and diameter, ensuring that resulting fasteners fit smoothly and securely. The tap is hardened and tempered to strike the optimal balance between hardness for cutting and toughness to resist snapping under torque.

Ideally suited for a wide range of materials, the 03B052 excels in mild steel, stainless steel, and non-ferrous metals like aluminum. Whether used for cutting new threads or repairing damaged ones (chasing), this tool delivers professional results. It is compatible with standard tap wrenches for hand operation and can also be utilized in machine tapping setups where appropriate speed and lubrication are applied.