1000N142 - Nitro 21/32" S&D Black & Gold Drill Bit, 1/2" Shank, 118° Split Point

Premium Performance for Hard Metal Drilling

The Nitro 21/32" S&D Drill Bit (Series 1000N) represents the pinnacle of hole-making technology for industrial applications. Manufactured from a premium grade of M-7N molybdenum high-speed steel, this tool is engineered to withstand the rigorous demands of drilling through tough materials. Unlike standard high-speed steel, the M-7N composition offers enhanced heat resistance and durability, ensuring that the cutting edge remains sharp even under high-stress conditions. This makes it an essential tool for workshops and manufacturing facilities that frequently process stainless steel and other hard alloys.

A key feature of this drill bit is its specialized surface treatment. The bit undergoes a Nitride process that imparts a hard, protective layer to the steel. This treatment measurably increases the surface hardness without increasing brittleness, a common failure point in lesser tools. Furthermore, the body and clearance areas feature a distinctive black and gold surface treatment. This is not merely aesthetic; it provides maximum lubricity, significantly reducing friction and heat generation during the drilling process. The result is a smoother cut, better chip evacuation, and a longer tool life.

Designed with the user in mind, the Nitro 1000N series features a 118-degree split point. This geometry is critical for precision work, as it effectively reduces the amount of thrust required to penetrate the material and eliminates the tendency of the bit to "walk" or wander across the surface upon contact. This self-centering capability ensures accurate hole placement without the absolute need for a center punch. The Silver & Deming (S&D) configuration means that while the cutting diameter is a substantial 21/32 inches, the shank is reduced to 1/2 inch, allowing this heavy-duty bit to be used in standard 1/2-inch drill chucks found on most drill presses and handheld power drills. Proudly made in the USA, this drill bit delivers the reliability and performance required by professional tradespeople.