01A004A - Walter SST+ 1/16" Cobalt Jobber Drill Bit with Quick Shank

High-Performance Drilling with Walter SST+ Technology

The Walter 01A004A 1/16" SST+ Jobber Drill Bit represents the pinnacle of drilling efficiency for industrial applications. Engineered by Walter Surface Technologies, this bit is crafted from a premium cobalt blend that offers exceptional hardness and heat resistance, making it suitable for continuous use in demanding environments. The defining feature of this tool is the exclusive Quick Shank design. Unlike traditional round shanks that can slip under high torque, the Quick Shank features longitudinal flats that lock securely into both keyed and keyless chucks, ensuring 100% power transmission and eliminating frustration caused by bit slippage.

Precision is at the core of the SST+ design. The bit features a self-centering "Speed Tip" that bites into the material immediately upon contact, preventing the bit from "walking" across the surface. This feature is particularly valuable when drilling on curved surfaces or round stock, such as pipes and tubing, where accuracy is critical. The 118-degree point angle combined with the specialized web geometry allows for rapid penetration with reduced feed pressure.

Durability is further enhanced by the heavy-duty fully ground body and the unique bronze SST surface treatment. This treatment acts as a lubricant, reducing friction between the bit and the workpiece, which in turn lowers heat generation—the primary cause of drill bit failure. The back-tapered body design provides additional clearance, preventing the bit from binding or seizing in deeper holes. Whether you are working with mild steel, aluminum, or thin gauge sheet metal, the Walter SST+ delivers consistent, burr-free holes with maximum efficiency.