Reduced Shank Cobalt Drill Bit for Drill America DWDCO Series

Cobalt and high-speed steel tools share similarities, but cobalt tools offer improved performance when cutting harder metals like stainless steel or nickel alloys, owing to their higher cobalt content. These tools are manufactured to National Aerospace Standard 907 and feature a heat-resistant cobalt composition, ground to a heavy-duty 135-degree split point.

The common flute and overall length design allows for minimal adjustment during tool changes, enhancing efficiency and convenience. Precision grinding ensures a high degree of concentricity between the shank and body diameter, contributing to the tools' accuracy and stability.

These cobalt steel tools are ideal for drilling in both tough, high-tensile-strength materials as well as low and medium-tensile-strength materials, expanding the size range capacity of portable drill chucks. The gold oxide surface treatment is a thinner oxide layer compared to the more commonly used black oxide, serving to identify the cobalt steel composition without significantly impacting performance, which remains similar to uncoated tools.

The round shanks of these cobalt tools enable compatibility with a wide variety of toolholding systems, providing users with greater flexibility in their applications. When operated in a counterclockwise direction (right-hand cut), the spiral fluted design effectively evacuates chips up and out of the cut, reducing the risk of clogging and improving the overall drilling process.

In summary, these cobalt steel tools offer a range of features and benefits that make them well-suited for a variety of drilling tasks, particularly in challenging materials. Their precision manufacturing, compatibility with diverse toolholding systems, and efficient chip evacuation contribute to their versatility and performance, making them a valuable addition to any metalworking toolbox.

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