Walter SST 21/64" Cobalt Drill Bit with Quick Shank

Maximize Your Cordless Drill Performance

Stop wasting time with drill bits that slip, dull quickly, or drain your battery. The Walter 01A021A 21/64" SST Drill Bit is designed specifically to solve the most common frustrations welders and fabricators face on the job site. Whether you are installing rivets, drilling pilot holes, or working on sheet metal fabrication, this bit is built to perform. The secret lies in its specialized cobalt blend, which stays sharp longer than standard bits, even when facing the heat generated by continuous drilling in mild steel and aluminum.

One of the biggest advantages of this Walter SST bit is its compatibility with cordless power tools. We all know the hassle of swapping out batteries halfway through a job. This bit is engineered to cut freely and efficiently, requiring less force and less power from your drill. The result is more holes drilled per battery charge, keeping you working longer without interruption. The "Quick Shank" design is a game-changer for anyone using keyless chucks; the shank has special flats that lock into the chuck jaws, guaranteeing that the bit will never spin or slip, no matter how much pressure you apply.

Precision is key in welding preparation, and the Walter 01A021A delivers. The self-centering Speed Tip bites into the metal instantly, so you don't need to waste time grabbing a center punch or worrying about the bit wandering across the surface. This is especially helpful when drilling into round tubing or pipe. With its ability to drill clean, burr-free holes in thin gauge metal and its rugged durability, this drill bit is an essential addition to any welder's toolbox. It handles multi-layer drilling with ease, making it the perfect companion for bodywork, HVAC installation, and general metal assembly.