Walter SST+ #35 Cobalt Stub Drill Bit

Heavy-Duty Walter #35 Cobalt Stub Drill for Tough Metals

When you are in the middle of a fabrication project or a critical repair, the last thing you need is a drill bit that snaps the moment you apply pressure. The Walter #35 SST Stub Drill Bit is built to solve the common frustrations associated with drilling hard metals. Designed with the professional welder and fabricator in mind, this bit utilizes a heavy-duty cobalt blend that cuts through stainless steel, mild steel, and non-ferrous metals with ease. The cobalt content provides the thermal durability needed to resist burning up, keeping the cutting edge sharp long after standard black oxide bits have failed.

The "stub" design is a game-changer for auto body work, HVAC installation, and general metalworking. Because the bit is shorter than a standard drill bit, it is incredibly stiff. This stiffness means you can lean into the drill to get through work-hardened surfaces without worrying about the bit bending or shattering. It is particularly effective for drilling out spot welds or making precise holes in sheet metal where a longer bit might wander or skate across the surface. The compact size also allows you to fit your drill into tighter spaces, making it a versatile addition to any toolbox.

Walter Surface Technologies has equipped this bit with a self-centering 135-degree split point. This feature is essential for efficiency; it allows you to place the tip exactly where you want the hole and start drilling instantly, without the bit dancing around. Combined with the bronze SST surface treatment, which helps clear chips and reduce heat, this drill bit delivers clean, round holes every time. Whether you are drilling rivets, sheet metal panels, or structural components, the Walter SST Stub Drill offers the reliability and performance professional tradespeople demand.

Why Choose Walter SST Stub Drills?

• Breakage Resistant: Short length handles higher feed pressure safely.
• Stainless Ready: Formulated to cut hard alloys without dulling quickly.
• No Walking: Starts fast on curved or flat surfaces without a center punch.
• Longer Life: Premium materials and coating extend tool life significantly.