Walter SST+ 9/64-Inch Cobalt Drill Bit for Stainless Steel

Stop Burning Through Bits on Stainless Steel

Every welder knows the frustration of grabbing a drill bit to pop a hole in a piece of stainless, only to have the bit smoke, squeal, and dull within seconds. The Walter SST+ 9/64" Drill Bit (01A509) is the solution to that headache. Built for the fabrication shop where time is money, this bit is formulated with a heavy-duty cobalt blend that eats through stainless steel, mild steel, and non-ferrous metals with aggressive speed. Unlike standard hardware store bits that work harden the material and burn out, the SST+ is designed to cut freely and stay cool, letting you finish the job and move on to the next weld.

The secret to its performance lies in the combination of its geometry and coating. The SST+ features a self-centering split point that bites into the metal immediately—no more walking the bit across the surface or needing to hunt for a center punch every time. This is especially useful when drilling on curved surfaces like pipe or tubing. The unique "high flow" flute design pulls chips out of the hole rapidly, preventing the clogging that often leads to snapped bits. To top it off, the exclusive bronze SST surface treatment reduces friction, allowing you to drill with less pressure and less heat.

Whether you are drilling out rivets, prepping for a tap, or fabricating a custom bracket, reliability is key. The Walter SST+ series is constructed with a fully ground body for maximum strength, meaning it can handle the torque of powerful hand drills without snapping. It is the "go-to" bit for professional welders who need a tool that works as hard as they do. Upgrade your drill index with the Walter SST+ and experience the difference that professional-grade tooling makes in your daily fabrication workflow.