Walter SST+ 29/64" Drill Bit, 3/8" Reduced Shank, 135° Split Point

Heavy-Duty Drilling Solution: Walter SST+ 29/64" Reduced Shank Bit

Every welder and fabricator knows the frustration of needing to drill a specific hole size only to find their portable drill's chuck is too small for the bit. The Walter 01R229 SST+ Drill Bit solves this common shop problem instantly. By featuring a 29/64-inch cutting diameter turned down to a 3/8-inch shank, this bit allows you to drill larger holes using your standard 3/8-inch drill. It is the perfect problem-solver for field work, installation jobs, and general fabrication where carrying a heavy 1/2-inch drill isn't feasible.

But convenience isn't the only benefit; performance is where the Walter SST+ line truly shines. Drilling stainless steel is notoriously difficult—it heats up quickly and work-hardens if your bit dulls or rubs. The Walter SST+ bit is engineered specifically to combat this. Made with a special cobalt-blend high-speed steel, it withstands the high temperatures generated when drilling tough metals. The 135-degree split point is a game-changer for accuracy. It bites into the metal the moment you pull the trigger, preventing the bit from wandering and scratching your workpiece. This means you don't need to waste time using a center punch for every single hole.

The robust design also features a unique helix geometry that pulls chips out of the hole efficiently. This prevents clogging and heat buildup, which are the primary causes of premature bit failure. Whether you are drilling through structural steel, mounting brackets on stainless equipment, or working with aluminum, this bit cuts clean and fast. It requires less pressure than standard bits, saving your arm strength for the welding and fitting work that follows.

Why Choose the Walter 01R229?

• Fits Standard Drills: Use a larger bit in your 3/8" chuck.
• Starts on Contact: No walking, no center punching required.
• Built for Stainless: Resists heat and stays sharp longer.
• Versatile: Works on almost all metal types found in the shop.