Walter SST+ Cobalt Jobber Drill Bit #35

Precision Drilling for Stainless Steel Fabrication

Welders and metal fabricators know that drilling stainless steel requires a tool that can handle heat and bite without work-hardening the material. The Walter SST+ Jobber Drill Bit #35 is the ultimate solution for fabrication shops dealing with hard alloys and complex assemblies. Unlike generic black-oxide bits that dull quickly, this premium drill bit is crafted from a heavy-duty cobalt blend designed specifically to cut through stainless steel, mild steel, and aluminum with aggressive efficiency.

One of the standout features for welders is the self-centering "Speed Tip." When working with round stock, tubing, or pipe—common materials in welding applications—standard drill bits often wander, scratching the surface and ruining the finish. The SST+ 135° split point geometry ensures the bit penetrates exactly where you place it, even on curved surfaces, without the need for a center punch. This precision is vital when preparing holes for rivets, tapping, or fit-up alignment.

The 01B535 model is a #35 wire gauge size (approx. 0.110 inches), a specific diameter often required for precision tapping charts or specific rivet sizes. The bit also features a specialized bronze surface treatment and a back-tapered body. These elements work together to reduce friction and prevent the bit from binding in deep holes. By clearing chips faster via the "High Flow" flutes, the bit stays cooler, preventing the stainless steel from hardening and ensuring a clean, burr-free hole every time. Upgrade your fabrication toolkit with Walter SST+ for results that match the quality of your welds.

Fabricator Advantages

• No Walking: Bites instantly on pipe and tubing.
• Longer Life: Cobalt blend outlasts standard HSS in stainless applications.
• Efficient Cutting: Requires less pressure, reducing operator fatigue during repetitive drilling.