01B559 - Walter SST+ Heavy Duty Cobalt Drill Bit, Wire Gauge #59

Premium Drilling Performance with Walter SST+

The Walter SST+ Jobber Drill Bit, size #59, is engineered for the most demanding industrial applications. When precision and durability are non-negotiable, this drill bit delivers exceptional results. Manufactured by Walter Surface Technologies, the SST+ series is renowned for its ability to tackle tough materials that often dull standard high-speed steel bits. The core of its performance lies in its specialized cobalt blend construction, which provides superior hardness and heat resistance, allowing the bit to maintain its cutting edge even under high-temperature drilling conditions common with stainless steel and other hard alloys.

Efficiency is built into every aspect of the design. The bit features a unique "High Flow" flute geometry that rapidly evacuates chips from the hole. This efficient chip removal is critical for preventing heat buildup and reducing friction, which in turn extends the life of the tool. Additionally, the back-tapered body design minimizes contact between the bit and the sidewalls of the hole, significantly reducing the risk of binding or breaking, especially in deeper drilling operations. This makes the SST+ an ideal choice for maintenance, repair, and operations (MRO) professionals who require reliability.

Accuracy is ensured by the 135-degree self-centering split point. Unlike standard 118-degree points that can wander upon contact, the SST+ "Speed Tip" bites into the material immediately, eliminating the need for center punching and ensuring precise hole placement every time. Finished with a special bronze SST surface treatment, this bit offers reduced friction and enhanced wear resistance. Whether used in a portable hand drill or a stationary drill press, the Walter 01-B-559 provides the consistency and performance required for professional metalworking.