03B574 - Walter SST Power Tap 7/16-20 UNF for Stainless and Steel

High-Performance Threading for Industrial Fabrication

The Walter 7/16-20 UNF SST Power Tap (03B574) is a premium cutting tool designed to maximize efficiency in industrial maintenance and fabrication environments. Engineered specifically for use with reversible portable drills, this power tap bridges the gap between manual precision and machine speed. It is manufactured to withstand the high torque requirements of power tapping while delivering clean, precise threads in some of the most challenging materials, including stainless steel, mild steel, and aluminum.

Advanced Geometry and Surface Treatment

At the core of this tool's performance is Walter's proprietary SST surface treatment. This specialized coating increases the surface hardness of the tap while providing essential lubricity. The result is a significant reduction in friction during the cutting process, which lowers heat generation—a common cause of tap failure in stainless steel. The tap features a unique "Power Tip" geometry that serves two critical functions: it self-aligns the tap with the hole axis for accurate starting, and it ejects chips forward (ahead of the tap). This forward chip evacuation is ideal for through-holes, ensuring that the flutes remain clear and the tap does not bind or break due to chip packing.

Secure Grip and Durability

Slippage in the drill chuck is a frequent issue when using round-shank tools for high-torque applications. The Walter SST Power Tap addresses this with a precision-ground three-flat shank. This design allows the drill chuck to grip the tool securely, transmitting full torque without spinning, even under heavy load. The elongated shank design also provides the reach necessary for tapping deeper holes or accessing recessed areas. By eliminating the slow process of hand tapping, this tool allows operators to increase throughput and reduce fatigue, making it an essential addition to any professional tool crib.