01A025A - Walter SST 25/64-Inch Cobalt Jobber Drill Bit with Quick Shank

High-Performance Cobalt Drilling Solution

The Walter 01A025A is a 25/64-inch SST Jobber Drill Bit engineered for industrial environments where precision and durability are paramount. This tool represents a significant advancement in drilling technology, utilizing a proprietary cobalt blend that offers exceptional hardness and heat resistance. Unlike standard high-speed steel bits, the SST series maintains its cutting edge integrity even under high-temperature conditions often encountered when drilling mild steel, aluminum, and other non-ferrous metals.

A defining feature of this product is the exclusive Quick Shank design. This shank geometry is specifically engineered to interface securely with both keyed and keyless chucks, effectively eliminating the common issue of the bit spinning within the chuck under high torque loads. This positive drive mechanism ensures that the rotational force of the power tool is fully transferred to the cutting edge, maximizing efficiency.

The bit geometry includes a self-centering "Speed Tip" which negates the need for center punching in many applications. This tip design prevents "walking" or wandering when starting a hole, which is particularly critical when working on curved surfaces such as pipes or tubing. Furthermore, the body of the bit features a back taper; this subtle reduction in diameter behind the cutting flutes significantly reduces friction against the hole walls, preventing binding and reducing heat generation. The tool is finished with a bronze SST surface treatment that further aids in lubricity and chip flow.

Designed with the modern industrial landscape in mind, the Walter SST bit is optimized for cordless tooling. By reducing friction and maximizing torque transfer, it draws less amperage during the cut, allowing operators to drill more holes per battery charge compared to conventional drill bits.