01B549 - Walter SST+ Cobalt Jobber Drill Bit #49 Wire Gauge

Precision Drilling with Walter SST+ Technology

The Walter 01B549 SST+ Jobber Drill Bit (Size #49) represents the pinnacle of drilling efficiency for industrial applications. Engineered by Walter Surface Technologies, this bit is designed to tackle the toughest materials found in MRO and fabrication environments, including stainless steel, mild steel, and non-ferrous metals. The core of its performance lies in its proprietary cobalt blend construction, which provides exceptional heat resistance and hardness, allowing the bit to maintain its cutting edge far longer than standard high-speed steel alternatives.

One of the standout features of the SST+ series is the exclusive "Speed Tip." This self-centering 135-degree split point geometry allows operators to drill on curved surfaces or round stock without the bit "walking," effectively eliminating the need for pre-punching center marks. This feature alone significantly reduces setup time and improves accuracy. Furthermore, the bit incorporates a unique "High Flow" flute design which optimizes chip evacuation. By clearing debris rapidly from the hole, the bit runs cooler and reduces the risk of binding, which is critical when drilling deep holes or working with work-hardening materials like stainless steel.

Durability is further enhanced by the special bronze SST surface treatment. This treatment acts as a lubricant to reduce friction during the drilling process, minimizing heat buildup—the primary enemy of drill bit longevity. The body of the drill is back-tapered, a subtle engineering choice that reduces contact with the sidewalls of the hole, further preventing binding and breakage. For professionals requiring reliable, high-speed drilling performance in a #49 wire gauge size, the Walter SST+ is the definitive choice.