Cobalt Aircraft Extension Drill Bit, GLBCO Series

Drill America Cobalt Aircraft Extension Drills are manufactured to the National Aerospace Standard 907 and are designed for improved performance when cutting harder metals such as stainless steel or nickel alloys. These drills are similar to high-speed steel, but with more cobalt added to their composition.

The 135° split point of the Drill America Aircraft Extension Drills is self-centering and reduces thrust, while the sizes smaller than 1/16 in. have the standard 118° point. These drills are available in 6 in. and 12 in. overall lengths, providing extra reach when required.

Effective in drilling tough, high tensile strength materials like stainless steel, inconel, and titanium, the Drill America Cobalt Aircraft Extension Drills feature a gold oxide surface treatment. This treatment is thinner than the more commonly used black oxide, and it provides similar performance to uncoated tools.

The round shanks of the Drill America Aircraft Extension Drills allow for use with a wide variety of tool holding systems, ensuring versatility and flexibility in various drilling applications. The 135° split point tip helps to prevent the drill from walking, ensuring precise and accurate drilling.

Overall, the Drill America Cobalt Aircraft Extension Drills are designed to deliver superior performance when working with challenging materials, while offering a range of lengths to accommodate different drilling requirements. The combination of cobalt-enhanced composition, specialized split point, and versatile surface treatment make these drills a reliable choice for aerospace and other high-performance drilling applications.

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