01A520 - Walter SST+ 5/16-Inch Cobalt Drill Bit for Stainless Steel

The Ultimate Drill Bit for Stainless Steel Fabrication

For welders and fabricators, few things are more frustrating than burning through multiple drill bits on a single stainless steel project. The Walter 5/16" SST+ Drill Bit (01A520) is the solution to that problem. Built with a specialized cobalt formula, this bit is designed to bite hard and stay sharp, even when facing the toughest alloys. It allows you to drill more holes in less time, keeping your production schedule on track and your frustration levels low.

The SST+ isn't just tough; it's smart. The 135-degree split point tip grabs the metal instantly, allowing you to start drilling exactly where you marked without the bit wandering off. This is especially useful when working out of position or on curved surfaces like handrails and exhaust tubing. You get clean, precise holes without the hassle of using a center punch for every single spot.

Heat is the enemy of drilling, especially in stainless steel where excess heat causes the metal to harden instantly. The Walter SST+ combats this with a special flute shape that pulls chips out of the hole quickly and a bronze surface treatment that slicks the way for the bit. This keeps the temperature down and ensures the bit cuts freely rather than rubbing and burning. Whether you are drilling pilot holes, clearing out rivets, or fabricating heavy brackets, the Walter 01A520 delivers professional results and long-lasting durability.