01D515 - Walter SST+ 1.50mm Cobalt Drill Bit for Stainless Steel

Industrial Grade Precision with Walter SST+ Drill Bits

The Walter 01D515 SST+ 1.50mm Drill Bit represents the pinnacle of drilling technology for industrial maintenance and fabrication environments. Designed to address the common challenges faced when drilling through tough alloys, this bit features a proprietary cobalt blend that significantly enhances hardness and red-heat resistance. In high-production settings where downtime for tool changes equates to lost revenue, the extended lifespan of the SST+ series provides a tangible return on investment. The bit is engineered not just for durability, but for speed; its ability to maintain a sharp cutting edge under thermal stress allows operators to drill more holes per hour compared to standard high-speed steel alternatives.

A key feature of the 01D515 is its specialized geometry. The "high flow" flute design is meticulously crafted to evacuate chips rapidly from the hole. In deep hole drilling or when working with materials that produce long, stringy chips, this evacuation capability is critical to preventing binding and heat accumulation—the two primary causes of premature bit failure. Furthermore, the back tapered body design reduces surface contact between the bit and the sidewalls of the hole, minimizing friction and further controlling temperature generation. This structural integrity ensures that the bit remains true and effective even during repetitive use in demanding applications.

Surface treatment plays a vital role in the performance of the Walter SST+ line. The exclusive bronze SST surface treatment acts as a lubricant and a protective barrier, reducing the coefficient of friction during the cut. This results in a smoother drilling action and cleaner hole finishes, often eliminating the need for secondary deburring operations. Whether utilized in a stationary drill press for precision component manufacturing or a portable drill for on-site repairs, the Walter 01D515 delivers consistent, reliable performance across a wide spectrum of materials, including mild steel, stainless steel, and non-ferrous metals.