01A515 - Walter SST+ 15/64 Inch Cobalt Drill Bit for Stainless Steel

Built for the Toughest Jobs

When you are fabricating metal, time is money, and a dull drill bit is a productivity killer. The Walter 15/64" SST+ Drill Bit (01A515) is the heavy-duty solution for welders and fabricators who need reliable tooling that can handle the heat. Designed specifically to tackle work-hardening materials like stainless steel, this bit uses a special cobalt blend that resists dulling far better than standard high-speed steel bits. If you are tired of burning through bits or struggling to get a hole started in hard metal, the SST+ is the upgrade your toolbox needs.

The performance of this bit starts with its aggressive 135-degree split point. This design allows the bit to bite into the metal instantly without "walking" or skating across the surface. This is a huge advantage when you are working in awkward positions or drilling into round stock where accuracy is difficult to maintain. You can say goodbye to the extra step of using a center punch; just point and drill. Once the drilling starts, the unique "High Flow" flute design takes over, pulling chips out of the hole quickly and efficiently. This prevents the bit from binding up and keeps the temperature down, ensuring you get more holes per bit.

Durability is built into every inch of the Walter 01A515. The solid, fully ground body provides the structural strength needed to withstand the torque and pressure of heavy-duty drilling, whether you are using a hand drill or a magnetic drill press. It is versatile enough to handle mild steel, non-ferrous metals, and stainless steel with equal ease. For professional welders who demand tools that work as hard as they do, the Walter SST+ drill bit offers the perfect balance of speed, life, and precision.