01A521 - Walter SST+ 21/64 Inch Cobalt Drill Bit for Stainless Steel

Tough Bits for the Toughest Metals

When you are in the middle of a fabrication job, the last thing you need is a drill bit that burns out or snaps halfway through a piece of stainless steel. The Walter 21/64" SST+ Drill Bit (01A521) is built to handle the abuse of heavy-duty metalworking. Manufactured with a robust cobalt blend, these bits are designed to cut through hard metals where standard bits fail. If you work with stainless steel, you know how quickly it can destroy a cheap bit—Walter SST+ bits are the solution, offering extended life and superior durability.

Speed and accuracy matter on the shop floor. That is why this bit features a self-centering 135° split point. You can say goodbye to the frustration of your drill bit wandering across the metal before it bites. This feature is especially useful when drilling into round stock or pipe, allowing you to start holes exactly where you need them without a pilot hole. The bronze surface treatment isn't just for looks; it acts as a lubricant to reduce friction, keeping the bit cooler and helping it slice through metal with less pressure required from the operator.

From automotive repairs to structural steel fabrication, the Walter SST+ 21/64" bit is a versatile addition to any welder's toolbox. The "High Flow" flute design clears debris fast, preventing clogging and binding. Whether you are drilling out broken bolts, fabricating brackets, or installing hardware, this bit provides the bite and stamina required for professional results. Stop wasting money on bits that dull after one use and upgrade to the industrial strength of Walter SST+.