01D533 - Walter SST+ 3.30mm Cobalt Blend Jobber Drill Bit

Maximize Production with High-Performance Drilling

In industrial fabrication and MRO environments, drilling efficiency is directly tied to profitability. The Walter 3.30mm SST+ Drill Bit (01D533) is engineered to meet the rigorous demands of modern manufacturing, specifically when working with tough materials like stainless steel and hard alloys. Unlike standard high-speed steel bits that dull rapidly under thermal stress, the SST+ series utilizes a proprietary cobalt blend that maintains hardness at higher temperatures, significantly extending tool life and reducing downtime associated with bit changes.

Advanced Geometry for Precision

Precision is paramount in professional machining. This drill bit features a 135° split point, a critical design element that allows for immediate engagement with the workpiece. This self-centering capability eliminates the need for pre-punching, ensuring accurate hole placement even on curved surfaces or pipes. Furthermore, the exclusive "High Flow" flute design is optimized to evacuate chips rapidly. Efficient chip removal is essential for preventing heat buildup—the primary cause of premature tool failure—thereby allowing for faster feed rates and cleaner holes.

Engineered for Tough Materials

The Walter SST+ is not just another drill bit; it is a specialized tool for challenging applications. The body of the bit is back-tapered to reduce surface contact and friction, which prevents binding and breakage in deep-hole drilling scenarios. Finished with a special bronze SST surface treatment, the bit resists galling and prevents the work material from hardening during the drilling process. Whether utilized in a stationary drill press or a portable hand drill, the 01D533 delivers consistent, high-torque performance across mild steel, stainless steel, and non-ferrous metals, making it an indispensable asset for any serious fabrication shop.