Walter SST+ Cobalt Jobber Drill Bit #31

Premium Cobalt Drill Bit for Metal Fabrication

For professional welders and fabricators, drilling through stainless steel and other hard metals is a daily challenge that requires tools capable of withstanding extreme heat and abrasion. The Walter #31 SST+ Jobber Drill is engineered specifically for these heavy-duty applications. Unlike generic bits that dull quickly or snap under pressure, the SST+ series utilizes a robust cobalt blend that maintains hardness at high temperatures, allowing you to cut through work-hardening materials like stainless steel with confidence and consistency.

The geometry of the 01B531 bit is tailored for the metalworker who needs speed and accuracy. The 135-degree self-centering Speed Tip is a game-changer for fabrication work, allowing you to start holes precisely where you need them without the bit skating across the metal. This feature saves time and reduces scrap by preventing surface damage. Whether you are using a hand-held power drill on a job site or a stationary drill press in the shop, the aggressive cutting action reduces the feed pressure required, minimizing operator fatigue.

Durability is further enhanced by Walter's proprietary bronze SST surface treatment, which acts as a shield against wear and friction. The specialized flute design ensures that metal chips are ejected smoothly, preventing clogging and keeping the cutting interface cool. This drill bit is not just a consumable; it is a performance upgrade for your fabrication process, suitable for drilling mild steel, aluminum, and particularly effective on stainless steel assemblies where precision and tool longevity are non-negotiable.