01M553 - Walter SST+ 53/64" Cobalt Prentice Drill Bit with 1/2" Shank

Reliable Hole Making for Tough Fabrication Jobs

For welders and fabricators, time is money, and a dull or slipping drill bit is a major bottleneck. The Walter 53/64" SST+ Prentice Drill Bit (01M553) is built to handle the harsh realities of the metal shop and the job site. Whether you are fabricating structural steel beams, modifying heavy machinery, or working on custom stainless steel projects, this bit provides the aggressive cutting action you need. Its robust cobalt blend construction allows it to cut through work-hardened surfaces that would burn up lesser bits, ensuring you get more holes per bit and less downtime for sharpening or replacement.

We know that drilling large holes with a portable drill can be a challenge, especially when the bit catches and spins in the chuck. Walter solves this with their secure 3-flat shank design. By grinding three flat surfaces onto the 1/2-inch reduced shank, this bit locks firmly into your drill's jaws. This means you can apply the necessary pressure without worrying about the bit slipping, giving you full control and maximum power transfer. It fits any standard 1/2" drill, making it a versatile addition to your tool kit.

Forget about the hassle of swapping bits to drill a pilot hole. The Walter SST+ features a unique self-centering point geometry that prevents walking and starts drilling on contact. This feature is a game-changer when working in awkward positions or on rounded surfaces where precision is difficult to maintain. Combined with a special bronze surface treatment that helps clear chips and reduce heat buildup, this drill bit makes large-diameter drilling smoother, faster, and more accurate. Equip your shop with Walter SST+ bits and experience the difference in performance.