01H121 - Walter 21/64 Hex Sst Stub Drill

Heavy-Duty Stub Drill for Fabricators and Welders

For welders and metal fabricators, drilling out spot welds, rivet holes, or mounting points in sheet metal is a daily task that demands durability. The Walter 01H121 21/64" SST+ Stub Drill is built to withstand the rigors of the metal shop. Its "stub" length is a critical feature for fabrication work; by reducing the distance between the chuck and the workpiece, the bit offers superior rigidity. This stiffness is essential when drilling into curved surfaces or when using a hand drill in awkward positions, as it prevents the flexing that typically leads to bit breakage. If you are tired of snapping long bits when leaning into a hard piece of stainless, this stub drill is the solution.

Efficiency in the shop is driven by speed and accuracy. The 135° split point on this Walter bit is designed to penetrate fast. It centers itself instantly, allowing you to drill precise holes in stainless steel and aluminum without the bit wandering across your workpiece and scratching the finish. This is particularly valuable when working on finished enclosures or automotive body panels where aesthetics matter. The clean cutting action reduces the heat input into the metal, preventing work-hardening in sensitive materials like stainless steel, which can otherwise make drilling nearly impossible.

The integration of a Hex shank makes this tool incredibly versatile for field work and installation jobs. You can easily lock it into an impact driver for high-torque drilling in tight spaces where a standard drill body won't fit. The Bronze SST surface treatment acts as a high-performance lubricant shield, ensuring that chips slide out of the flutes easily rather than packing in and overheating the bit. From HVAC ducting to custom automotive fabrication, the Walter 01H121 provides the reliability and cutting power professional welders expect from their consumables.