Walter SST+ 5.50mm Cobalt Drill Bit for Stainless Steel

Stop Burning Through Bits on Stainless

Every welder knows the frustration of grabbing a drill bit, starting a hole in a piece of stainless steel, and watching the bit smoke, squeal, and dull out before it even breaks through. The Walter 5.50mm SST+ Drill Bit is built to end that struggle. This isn't your average hardware store bit; it is a heavy-duty, cobalt-infused workhorse designed specifically for the metalworker who needs to get the job done right the first time. If you are fabricating brackets, repairing machinery, or drilling out rivets, this bit eats through metal that destroys lesser tools.

The secret is in the Cobalt blend and the Bronze SST coating. This combination allows the bit to handle the intense heat that comes from drilling hard metals without losing its cutting edge. You get more holes per bit, which means fewer trips to the tool crib and less money wasted on replacements. The high-flow flute design is a game-changer—it pulls chips out of the hole fast, so you aren't fighting against clogged metal shavings. This keeps the bit cool and keeps you drilling fast.

Whether you are working on a bench with a drill press or out in the field with a cordless drill, the Walter SST+ performs. The back tapered body prevents the bit from getting stuck or binding up in the hole, saving your wrist and your drill motor. At 5.50mm, it provides the precise metric sizing you need for specific tapping or clearance holes. Upgrade your toolbox with a bit that works as hard as you do and experience the difference that professional-grade tooling makes on your projects.