01A014 - Walter SST+ 7/32" Cobalt Drill Bit with Quick Shank

Precision Engineering for Professional Drilling

The Walter SST+ 7/32" Jobber Drill Bit (SKU: 01A014) represents the pinnacle of drilling technology, designed specifically for industrial maintenance and fabrication environments where precision and efficiency are paramount. At the core of this tool is a proprietary cobalt blend substrate, engineered to withstand high temperatures and abrasive wear significantly better than standard high-speed steel. This metallurgical advantage allows the SST+ to maintain a sharp cutting edge even when drilling through tough materials like mild steel, aluminum, and non-ferrous alloys.

One of the standout features of this drill bit is the exclusive Quick Shank design. In high-torque applications, standard round shanks often slip within the chuck, damaging both the bit and the tool while halting progress. The Quick Shank features longitudinal flats that lock securely into both keyed and keyless chucks, ensuring positive drive transmission. This design not only prevents slippage but also facilitates rapid bit changes, streamlining workflow in busy workshops.

The geometry of the SST+ is equally impressive. It utilizes a self-centering "Speed Tip" that bites into the material immediately upon contact. This eliminates the wandering or "walking" common with standard chisel-point bits, removing the need for pre-punching center marks on curved or flat surfaces. Furthermore, the body of the bit is back-tapered, a subtle design choice that reduces the surface area in contact with the hole walls. This reduction in friction minimizes heat buildup—the primary enemy of drill bit longevity—and prevents binding when drilling through multiple layers of sheet metal.

Finished with a special bronze SST surface treatment, this bit offers enhanced lubricity to assist with chip evacuation. Whether used in a stationary drill press or a portable cordless drill, the Walter 01A014 delivers consistent, round holes with minimal burr formation. It is the "original" SST drill bit, proven to increase productivity by allowing more holes to be drilled per battery charge, making it an indispensable asset for modern MRO operations.