01J002 - Walter SST+ #2 Cobalt Stub Drill Bit, 135-Degree Split Point

Precision Drilling with Walter SST+ Technology

The Walter 01J002 #2 SST Stub Drill is a high-performance cutting tool engineered for the most demanding industrial environments. Manufactured by Walter Surface Technologies, this drill bit is part of the renowned SST+ line, known for its ability to tackle tough materials like stainless steel and heavy-gauge sheet metal without compromising on speed or precision. The core advantage of this bit lies in its material composition; it is crafted from a specialized cobalt blend that maintains hardness even at high drilling temperatures, significantly extending the tool's lifespan compared to standard high-speed steel bits.

Designed with a "stub" or screw machine length, this drill bit offers superior rigidity. The shorter flute length reduces the torque and flexing that typically lead to breakage, making it an excellent choice for drilling into rounded surfaces or using portable hand drills where stability can be a challenge. The 135-degree split point geometry is a critical feature, allowing the bit to self-center immediately upon contact. This eliminates the need for a center punch and prevents the bit from "walking" across the workpiece, ensuring accurate hole placement every time.

Furthermore, the bit features a unique bronze SST surface treatment. This coating not only identifies the premium quality of the tool but also serves a functional purpose by reducing friction and facilitating smoother chip evacuation. Whether used in a stationary drill press or a handheld power tool, the Walter #2 SST Stub Drill delivers consistent, clean results in mild steel, non-ferrous metals, and difficult-to-machine stainless alloys.