Drill America GLBCOX67/64 7/64 x 6 Cobalt Aircraft Extension Drill Bit, GLBCO Series Cobalt Aircraft Extension Drill Bit, GLBCO Series

Drill America's 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 content.

The 135-degree split point tip of the Drill America Aircraft Extension Drills is self-centering and helps to reduce thrust, making them effective in drilling tough, high-tensile strength materials like stainless steel, inconel, and titanium. Sizes smaller than 1/16 inch have the standard 118-degree point.

These drills feature a round shank that allows them to be used with a wide variety of tool holding systems. The gold oxide surface treatment is thinner than the more commonly used black oxide, but the performance is similar to uncoated tools.

The Drill America Aircraft Extension Drills are available in 6-inch and 12-inch overall lengths to provide the extra reach that may be required in certain drilling applications. The 6-inch version is particularly useful when additional length is needed for the drilling task at hand.

In summary, the key features of the Drill America Aircraft Extension Drills include:

• Manufactured to National Aerospace Standard 907
• 135-degree split point tip that is self-centering and reduces thrust
• Smaller sizes have a 118-degree standard point
• Round shanks for use with a variety of tool holding systems
• Gold oxide surface treatment that is thinner than black oxide but provides similar performance
• Available in 6-inch and 12-inch overall lengths to accommodate different reach requirements
• Effective in drilling tough, high-tensile strength materials like stainless steel, inconel, and titanium

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