Walter SST+ 5/8 Inch Drill Bit with 3/8 Inch Reduced Shank

Drill Bigger Holes with Your Standard Drill

Don't let your drill's chuck size limit your work. The Walter SST+ 5/8" Reduced Shank Drill Bit (01R240) is the perfect solution for welders and fabricators who need to drill a 5/8-inch hole but only have a drill with a 3/8-inch chuck. This "step-down" shank design lets you use lighter, more portable drills for larger holes, saving you from hauling around heavy machinery for a simple task.

Cuts Through Stainless Like Butter

We know that drilling stainless steel can burn up cheap bits in seconds. That's why the Walter SST+ series is a favorite among welders. Made with a special cobalt blend, these bits are built to take the heat. They stay sharp longer, meaning you spend less time changing bits and more time working. The 135-degree split point is a game-changer—it starts cutting the instant it touches the metal. No more slipping, sliding, or scratching up your workpiece before the hole starts.

Perfect for Round Stock and Pipe

If you work with pipe or tubing, you know how hard it is to get a hole started on a round surface. The self-centering tip on this Walter bit grabs the metal immediately, making it ideal for drilling into curved surfaces without a pilot hole or center punch. It’s tough, reliable, and designed for the real-world abuse of a welding shop.

Why Welders Choose This Bit

• Versatile: Turns your 3/8" drill into a heavy-hitter capable of 5/8" holes.
• Tough: Handles stainless steel, mild steel, and aluminum without dulling quickly.
• Fast: Aggressive cutting geometry clears chips fast to keep the bit cool.