Walter SST+ 5/8 Inch Cobalt Prentice Drill Bit with 1/2 Inch Shank

Drill Bigger Holes with Your Standard Drill

Need to drill a 5/8-inch hole but only have a standard 1/2-inch chuck on your drill? The Walter SST+ Prentice Drill Bit (SKU: 01M540) is the solution you need. This "reduced shank" bit features a large 5/8-inch cutting head on a 1/2-inch shank, allowing you to use your everyday portable drill or drill press for heavy-duty tasks. Whether you are working on a truck frame, fabricating a custom bracket, or repairing agricultural equipment, this bit gives you the capacity to bore large holes without needing specialized heavy machinery.

Drilling through tough metals like stainless steel can be a nightmare with cheap bits that dull instantly or wander all over the surface. Walter has solved this with their SST+ technology. Infused with a cobalt blend, this bit is built to withstand the intense heat generated when drilling hard metals, keeping its edge sharp hole after hole. You won't need to waste time center-punching or drilling pilot holes either; the advanced point geometry is designed to self-center and start cutting the moment you pull the trigger. It digs in and cuts fast, saving you time and muscle.

We all know the frustration of a drill bit spinning inside the chuck when the going gets tough. The 01M540 eliminates this annoyance with three flat surfaces ground onto the shank. These flats lock into the jaws of your drill chuck, providing a secure, non-slip grip that powers through the metal. The bronze surface treatment helps clear chips out of the hole and keeps the bit cooler, preventing it from binding. Upgrade your toolbox with the Walter SST+ Prentice drill and experience the difference that professional-grade cutting tools make.