01A020 - Walter SST 5/16 Inch Cobalt Jobber Drill Bit with Quick Shank

High-Performance Walter SST 5/16" Jobber Drill Bit

The Walter SST Jobber Drill Bit (SKU: 01A020) represents a pinnacle in drilling technology, designed specifically for maintenance, repair, and operations (MRO) professionals who demand reliability and precision. At the core of this tool is a proprietary cobalt blend construction. Unlike standard high-speed steel bits, this cobalt formulation provides exceptional heat resistance, allowing the bit to maintain its cutting edge even when subjected to the high temperatures generated by drilling through tough materials like mild steel and non-ferrous metals.

One of the standout features of the SST series is the exclusive Quick Shank. In industrial environments, time is money, and a drill bit that spins in the chuck is a major productivity killer. The Quick Shank is engineered with longitudinal flats that lock securely into both keyed and keyless chucks, ensuring positive torque transmission and preventing slippage entirely. This feature not only protects the drill chuck from damage but also ensures that every ounce of power from the drill is transferred to the cutting edge.

Precision is paramount in professional settings, and the SST bit delivers with its self-centering "Speed Tip." This advanced point geometry prevents the bit from walking across the workpiece, eliminating the need for pre-drilling or center punching. This is particularly advantageous when working on curved surfaces or in tight spaces where using a punch is impractical. Furthermore, the bit features a back-tapered body which reduces friction on the side walls of the hole, facilitating smoother drilling through multiple layers of sheet metal without binding.

Finished with a special bronze SST surface treatment, this 5/16-inch bit is optimized for chip flow and reduced friction. It is an ideal choice for use with cordless power tools, as its efficient cutting action reduces the load on the motor, allowing users to drill significantly more holes per battery charge. Whether for general fabrication or precision assembly, the Walter SST drill bit is a robust solution for modern industrial challenges.