03B093 - Walter 9/16-12 UNC HSS Bottoming Tap for Blind Holes

Precision Threading with Walter High Speed Steel Taps

The Walter 03B093 9/16-12NC Bottoming Tap is a high-performance threading tool engineered for industrial metalworking applications. Manufactured from premium-grade High Speed Steel (HSS), this tap is designed to withstand the high thermal and mechanical stresses associated with cutting threads in hard materials. The HSS composition provides excellent hardness and wear resistance, ensuring that the cutting edges maintain their sharpness over a prolonged service life, even when working with abrasive materials like stainless steel or tough alloys.

This specific model is a "bottoming" tap, characterized by a very short chamfer length of typically 1 to 2 threads. This geometry is critical for applications involving blind holes—holes that do not pass completely through the workpiece. While taper or plug taps are ideal for starting threads, they leave a significant portion of the hole unthreaded at the bottom due to their longer chamfers. The Walter bottoming tap allows the operator to cut full-depth threads virtually to the very bottom of the hole, maximizing the thread engagement length and the holding power of the fastener.

Walter Surface Technologies utilizes precision grinding processes to manufacture these taps, resulting in tight tolerances and superior thread finish. The ground threads reduce friction during the cutting process, which helps in evacuating chips more efficiently and prevents binding. This attention to detail ensures that every thread cut with the 03B093 meets strict quality standards for fit and function. Whether used in a machine setup or for hand tapping operations, this tool delivers the consistency required by professional machinists and fabricators.

The tap is versatile enough to be used on a wide range of materials, including aluminum, mild steel, and stainless steel. Its robust construction minimizes the risk of breakage, a common issue when tapping deep or blind holes in harder metals. By choosing Walter, you are investing in a tool that balances cutting speed, finish quality, and durability, reducing downtime and tool replacement costs in your production environment.