01B503 - Walter SST+ Cobalt Jobber Drill Bit, Wire Gauge #3 (0.2130 inch)

High-Performance Drilling with Walter SST+ Technology

The Walter 01B503 SST+ Jobber Drill Bit (Size #3) represents the pinnacle of drilling technology for industrial maintenance and fabrication. Designed to tackle the toughest materials found in modern workshops, this drill bit combines a sophisticated cobalt blend with advanced geometric features to deliver unmatched performance. Whether you are working with mild steel, non-ferrous metals, or challenging stainless steel alloys, the SST+ series is engineered to drill more holes in less time, reducing downtime and increasing overall shop productivity.

Exclusive Speed Tip Design

One of the standout features of the Walter SST+ line is the exclusive Speed Tip. This self-centering point geometry eliminates the common frustration of drill bit "walking" or wandering across the workpiece before penetration begins. With the Speed Tip, you can drill directly into round surfaces or curved pipes without the need for a center punch or pilot hole. This feature alone significantly speeds up workflow, allowing operators to position and drill with pinpoint accuracy instantly.

Superior Material and Durability

Durability is at the core of the 01B503. It is crafted from a premium cobalt blend that provides exceptional heat resistance and hardness. Drilling through stainless steel generates intense heat that can quickly dull standard high-speed steel bits. The cobalt composition of the SST+ allows it to maintain its cutting edge at higher temperatures, ensuring a longer service life. Additionally, the bit features a special bronze SST surface treatment that acts as a lubricant, further reducing friction and heat generation during the drilling process.

Optimized for Efficiency

Beyond the material, the physical design of the bit is optimized for heavy-duty use. It features a "high flow" flute design that rapidly evacuates chips from the hole, preventing clogging and heat buildup. The body of the bit is back-tapered, a subtle design choice that prevents the sides of the bit from binding in the hole, reducing torque requirements and minimizing the risk of breakage. For professionals who demand reliability and speed, the Walter #3 SST+ Jobber Drill Bit is the ultimate choice for precision metalworking.