01B540 - Walter SST+ #40 Cobalt Jobber Drill Bit

Premium Industrial Drilling Performance

The Walter SST+ #40 Jobber Drill Bit (SKU: 01B540) represents the pinnacle of drilling technology for industrial maintenance, repair, and operations. Designed to address the common challenges faced when machining high-tensile materials, this drill bit is engineered from a proprietary cobalt blend. This material composition provides superior hot hardness, allowing the tool to maintain its cutting edge even under the extreme thermal loads generated when drilling stainless steel and other hard alloys. For industrial facilities where downtime equates to lost revenue, the reliability of the SST+ series ensures consistent performance and reduced tool consumption.

One of the standout technical features of this bit is the exclusive "Speed Tip" geometry. Unlike conventional chisel-point drills that require a center punch to start a hole, the SST+ features a self-centering 135-degree split point that bites into the material immediately upon contact. This is particularly advantageous for maintenance teams working on curved surfaces, such as pipes or round stock, where bit walking is a frequent safety and quality issue. The precision of the tip ensures that holes are located exactly where intended, reducing scrap and rework in critical fabrication tasks.

Chip evacuation is a critical factor in drill bit longevity, and Walter has addressed this with a "High Flow" flute design. The geometry of the flutes is optimized to pull chips away from the cutting zone rapidly. Combined with the unique bronze SST surface treatment, which lowers the coefficient of friction, this design minimizes heat buildup—the primary cause of premature tool failure. The back-tapered body further enhances performance by reducing the surface area in contact with the hole walls, preventing binding and ensuring that the drill cuts freely throughout its depth. For professionals demanding precision and durability, the Walter SST+ #40 is the definitive choice.