Walter SST+ 47/64" Cobalt Prentice Drill Bit with 1/2" Shank

Heavy-Duty Bits for the Toughest Jobs

When you are out in the field or deep in a fabrication project, you need tools that work as hard as you do. The Walter 01M547 47/64" SST+ Prentice Drill Bit is built to handle the most demanding drilling tasks without backing down. If you frequently drill through stainless steel or heavy structural steel, you know that standard bits burn out fast and often struggle to bite. This Walter SST+ bit is crafted with a special cobalt blend that resists heat buildup, keeping the cutting edge sharp far longer than generic bits. It is the reliable partner you need for heavy-duty maintenance, repair, and fabrication.

Nothing kills productivity like a drill bit spinning inside the chuck. That is why this bit features a smart 1/2-inch shank design with three flat sides. Whether you are using a hand drill or a drill press, those flats lock into the chuck jaws securely, guaranteeing that every ounce of power from your drill goes into cutting the metal. This reduced shank allows you to drill large 47/64" holes using standard equipment with a 1/2" capacity, adding versatility to your tool kit without requiring specialized heavy machinery.

Time is money, and the Walter 01M547 saves you both. Thanks to its aggressive self-centering point, you can skip the step of pre-drilling a pilot hole. Just line it up and pull the trigger—the bit stays on target and cuts fast. The bronze surface treatment helps clear chips out of the hole quickly, preventing binding and overheating. Whether you are drilling round surfaces, thick plate, or structural beams, this bit delivers clean, accurate holes every time. Upgrade your drilling arsenal with Walter's proven durability and stop wasting money on bits that can't make the cut.