1000N150 - Nitro 25/32" S&D Drill Bit, 1/2" Shank, 118° Split Point, M-7N HSS

High-Performance M-7N Molybdenum HSS Drilling

The Nitro 1000N Series 25/32" Silver & Deming (S&D) Drill Bit is a precision-engineered tool designed to meet the rigorous demands of industrial machining and maintenance operations. Manufactured from a premium grade of M-7N molybdenum high-speed steel, this drill bit offers exceptional red hardness and wear resistance. The substrate is further enhanced by a specialized Nitride surface treatment. This case-hardening process creates a protective layer that is measurably harder than standard high-speed steel, significantly increasing the tool's lifespan without introducing brittleness. This balance of hardness and toughness is critical for applications involving stainless steel and other high-tensile alloys.

The geometry of the 1000N150 is optimized for efficiency and accuracy. It features a 118-degree split point, a self-centering design that effectively eliminates the "walking" phenomenon often experienced with conventional chisel points. This precise starting capability removes the need for center punching in many scenarios and drastically reduces the axial thrust required to penetrate the workpiece. The body and clearance areas feature a distinctive Black & Gold surface treatment, which not only identifies the premium nature of the tool but also provides maximum lubricity. This reduces friction and heat buildup—the primary causes of tool failure—ensuring smoother chip evacuation and cleaner holes.

Designed with versatility in mind, this S&D drill features a 1/2-inch reduced shank. This allows the 25/32-inch cutting diameter to be utilized in standard 1/2-inch chucks found on portable power drills and drill presses, bridging the gap between standard capacity tools and large-diameter hole requirements. With a 3-inch flute length and robust web construction, the Nitro 1000N150 delivers consistent performance in deep boring applications. Proudly made in the USA, this tool represents a fusion of advanced metallurgy and practical design for the professional machinist.