Walter SST+ Cobalt Jobber Drill Bit, Wire Gauge #28

The Welder's Choice for Tough Metals

Welders and fabricators know that drilling through stainless steel can be one of the most frustrating tasks in the shop. Standard bits burn out, dull instantly, or snap under pressure. The Walter 01B528 #28 SST+ Jobber Drill Bit is built specifically to solve these problems. Manufactured with a heavy-duty cobalt blend, this bit is designed to bite into hard metals and keep cutting long after standard bits have failed. Whether you are drilling rivet holes, preparing surfaces for mounting, or fabricating custom brackets, the SST+ delivers the aggressive performance needed for industrial MRO environments.

One of the standout features for welders working with portable drills is the self-centering Speed Tip. When you are in an awkward position or working on a vertical surface, you don't always have a free hand to use a center punch. The SST+ tip grabs the metal immediately upon contact, ensuring your hole is exactly where you need it without skating across the surface. This precision is critical when alignment matters. The #28 wire gauge size (0.1405 inches) is precise and consistent, ensuring tight tolerances for tapping or fastener clearance.

Beyond the tip, the structural design of the bit protects your investment. The back-tapered body prevents the bit from seizing in the hole, a common occurrence that often leads to snapped bits and ruined workpieces. The bronze surface treatment helps shed heat and chips, keeping the cutting edge cooler. Compatible with both stationary drill presses and hand-held power drills, the Walter SST+ series is the reliable workhorse you need in your tool crib. Stop wasting time changing dull bits and switch to the proven durability of Walter's cobalt technology.