01J011 - Walter SST #11 Cobalt Stub Drill Bit for Stainless Steel

High-Performance Cobalt Drilling for Tough Alloys

The Walter #11 SST Stub Drill (SKU: 01J011) is engineered for industrial professionals who demand precision and durability when working with hard materials. Designed specifically for the challenges of drilling sheet metal and stainless steel, this bit features a heavy-duty cobalt blend construction that withstands the high temperatures generated during aggressive drilling operations.

Unlike standard jobber-length bits, the SST Stub Drill utilizes a screw machine length (stub) geometry. This shorter profile provides superior rigidity, virtually eliminating the flexing and vibration that lead to premature breakage. The increased stability allows for higher feed rates and more accurate holes, particularly in thin-gauge materials where bit wandering is a common issue.

The bit is finished with Walter's proprietary bronze SST surface treatment, which acts as a lubricant to reduce friction and facilitate chip evacuation. Combined with a self-centering split point, this tool bites into the material immediately upon contact, ensuring precise hole placement without the need for a center punch. Whether used in a stationary drill press or a portable hand drill, the Walter SST Stub Drill delivers consistent, professional results in the most demanding MRO environments.