3/4 Inch SST+ Cobalt Prentice Drill Bit with 1/2 Inch Shank

Heavy-Duty 3/4" Drill Bit for Fabricators

Tackle your toughest metalworking projects with the Walter 3/4" SST+ Prentice Drill Bit, a tool built for welders and fabricators who demand reliability. When you need to drill a 3/4-inch hole but only have a standard hand drill or drill press, this bit is the answer. Its reduced 1/2-inch shank allows it to fit securely into standard chucks, giving you the capability to drill large diameter holes without upgrading your power tools. Whether you are working on a truck frame, a structural beam, or a custom fabrication piece, this bit delivers the performance you need.

Time is money in the shop, and the SST+ design saves you plenty of it. The advanced split-point geometry is designed to be non-walking, meaning you can start drilling exactly where you need to without a center punch or a smaller pilot hole. It cuts aggressively yet smoothly through mild steel, non-ferrous metals, and even hardened stainless steel. The secret lies in the cobalt blend construction, which withstands the high heat generated when drilling hard metals, keeping the cutting edge sharp far longer than standard high-speed steel bits.

Slipping bits can ruin a workpiece and damage your drill chuck. Walter solves this with a 3-flat shank design that ensures a rock-solid grip. As the torque increases during the cut, the chuck jaws hold firm against the flats, preventing the bit from spinning inside the chuck. This feature is particularly useful when drilling through round surfaces or uneven materials where torque fluctuations are common. With the Walter 01M548, you get a clean, precise hole every time, with a tool that is built to last through hundreds of sharpenings.