01B504 - Walter SST+ Cobalt Jobber Drill Bit - Size #4

Industrial Grade Precision with Walter SST+ Drill Bits

The Walter 01B504 #4 SST+ Jobber Drill is engineered for the most demanding industrial environments where precision, speed, and tool longevity are paramount. Manufactured from a premium cobalt blend, this drill bit is specifically designed to tackle tough materials that typically degrade standard high-speed steel bits, such as stainless steel and other hard alloys. The inclusion of cobalt in the substrate significantly increases the heat resistance of the bit, allowing it to maintain its cutting edge hardness even at the elevated temperatures generated during continuous heavy-duty drilling operations.

A standout feature of the SST+ series is the exclusive "Speed Tip" geometry. This self-centering 135-degree split point design allows operators to start holes with pinpoint accuracy without the need for a center punch or pilot hole. This feature is particularly beneficial when working on round surfaces or pipes, where standard bits tend to "walk" or wander before engaging the material. By eliminating the walking effect, the SST+ drill ensures tighter tolerances and reduces the risk of marring the workpiece surface.

Efficiency in chip removal is critical for deep hole drilling, and the Walter SST+ excels in this area with its innovative "High Flow" flute design. The geometry of the flutes is optimized to evacuate chips rapidly, preventing heat buildup and clogging that can lead to bit breakage. Furthermore, the body of the drill features a slight back taper, which reduces surface contact between the bit and the hole walls, thereby minimizing friction and preventing binding. Finished with a specialized bronze SST surface treatment, this drill bit offers reduced friction coefficients and enhanced corrosion resistance, making it a reliable choice for MRO professionals and fabricators seeking to optimize their drilling processes.

Whether utilized in a stationary drill press or a portable hand drill, the Walter #4 SST+ Jobber Drill delivers consistent performance. Its robust construction allows for higher feed rates and speeds compared to conventional bits, translating to increased productivity and a lower cost per hole over the lifespan of the tool.