01J034 - Walter SST Cobalt Stub Drill Bit for Stainless Steel and Sheet Metal

High-Performance Drilling for Tough Materials

The Walter SST Stub Drill is a specialized cutting tool engineered to deliver superior performance in demanding industrial environments. Designed with the professional in mind, this drill bit addresses the common challenges associated with drilling hard materials such as stainless steel and sheet metal. At the core of its performance is a robust cobalt blend substrate. This high-quality material composition provides exceptional heat resistance, allowing the bit to maintain its cutting edge even under the high temperatures generated when drilling tough alloys. This longevity translates to reduced downtime and lower consumable costs over time.

Enhanced Rigidity and Precision

One of the defining features of the SST Stub Drill is its geometry. Unlike standard jobber-length bits, this tool features a "stub" or screw machine length design with shorter flutes. This compact structure significantly increases the rigidity of the bit, minimizing the flexing and vibration that often lead to breakage, especially when using hand-held portable drills. The increased stability ensures more precise holes and allows operators to apply the necessary feed pressure without fear of snapping the tool. This makes it an indispensable asset for maintenance, repair, and operations (MRO) tasks where reliability is paramount.

Advanced Surface Treatment

To further enhance its capabilities, Walter has applied a specialized Bronze SST surface treatment to the bit. This coating serves multiple functions: it reduces the coefficient of friction between the tool and the workpiece, facilitates smoother chip flow, and aids in heat dissipation. The result is a cooler drilling process and a cleaner hole finish. Additionally, the bit features an optimally designed split point. This self-centering geometry eliminates the need for a center punch, preventing the bit from "walking" or skating across the surface of the metal upon contact. Whether you are drilling into curved surfaces or flat sheet metal, the Walter SST Stub Drill provides the control and durability needed for professional results.