01H129 - Walter 29/64 Hex Sst Stub Drill

The Ultimate Stub Drill for Fabricators

When you are out on the shop floor or stuck in a tight install, the last thing you need is a drill bit that snaps or skates across your workpiece. The Walter 01H129 29/64" Hex SST Stub Drill is built to solve exactly those problems. Designed with the welder and fabricator in mind, this bit combines the toughness of a short "stub" length with the convenience of a hex shank. The shorter profile doesn't just help you fit your drill into cramped corners; it makes the bit incredibly rigid. This rigidity allows you to lean into the cut without the bit flexing, which is the number one reason standard bits snap when you're drilling through stainless steel or hardened alloys.

Time is money in fabrication, and prep work can eat up your day. That's why this Walter bit features a self-centering 135° split point. Forget about hunting for your center punch and hammer every time you need to pop a hole in a piece of sheet metal. You can place this tip exactly where you want it, pull the trigger, and it penetrates immediately without wandering. This is especially crucial when drilling on curved surfaces like pipe or tubing, where standard bits love to slide off the mark. The clean cutting action leaves minimal burrs, meaning you spend less time deburring holes and more time welding and assembling.

The "SST" in the name stands for Super Speed Tip, but it also refers to the bronze surface treatment that gives this bit its distinctive look. This coating acts as a lubricant and heat shield, keeping the cutting edge cooler for longer. Since heat is the enemy of sharp edges, this treatment ensures your bit stays sharp through dozens of holes in mild steel, aluminum, and stainless. The hex shank is another game-changer for productivity—it locks solid into your chuck so you never have to stop and re-tighten a slipping bit, and it lets you swap bits in seconds if you're using an impact driver or quick-connect system. For heavy-duty body work, electrical installs, or general metal fab, this is the reliable workhorse you want in your toolkit.