Walter SST+ 31/64" Drill Bit, 3/8" Reduced Shank, 135° Split Point

The Drill Bit That Bites Back

Every welder knows the frustration of trying to drill a hole in stainless steel only to have the bit skate across the surface, ruining the finish and wasting time. The Walter 01R231 SST+ Drill Bit is the solution you’ve been looking for. This isn't just another hardware store bit; it's a professional-grade tool designed to bite into metal instantly. With a 31/64-inch diameter, it is perfectly sized for specific bolt clearances or tap holes, but the real game-changer is the reduced 3/8-inch shank. This means you can chuck this bit into your standard cordless drill or smaller air drill without needing to drag out the heavy 1/2-inch drive tools. It’s all about convenience without sacrificing the power you need to get through the job.

The secret to its performance lies in the 135-degree split point. If you are working on a curved surface like a pipe or a manifold, standard bits tend to wander off the mark. The Walter SST+ centers itself the moment you pull the trigger, digging in right where you want it. This feature alone saves you the hassle of carrying a center punch and hammer in your pocket. It is designed to cut freely with less pressure, which is a huge benefit when you are drilling overhead or in awkward positions where you can't put your full body weight behind the drill. Less pressure means less heat, and keeping the heat down is the only way to keep a bit sharp when drilling stainless.

Whether you are fabricating a custom bracket, repairing a piece of food-grade equipment, or just need to punch a clean hole through mild steel, this bit delivers. It clears chips effectively, preventing binding and snapping, which is common with inferior bits. The Walter 01R231 is built tough to handle the abuse of the welding shop. Stop burning through cheap bits and fighting with your drill chuck. Upgrade to the Walter SST+ reduced shank bit and experience the difference that quality geometry makes when you are staring down a piece of 304 stainless.