Drill America GLBCOX67/32 7/32 x 6 Cobalt Aircraft Extension Drill Bit, GLBCO Series

Drill America's Cobalt Aircraft Extension Drills are designed to excel when cutting harder metals, such as stainless steel or nickel alloys, thanks to their higher cobalt content compared to high-speed steel. These drills feature a distinctive gold oxide surface treatment, which is a thinner oxide coating than the more common black oxide. The performance of the gold oxide-treated drills is comparable to that of uncoated tools.

Manufactured to the National Aerospace Standard 907, Drill America's Aircraft Extension Drills boast a 135-degree split point that is self-centering and reduces the amount of thrust required during the drilling process. For sizes smaller than 1/16 inch, the drills have a standard 118-degree point.

These versatile drills are available in two overall lengths – 6 inches and 12 inches – to accommodate situations where extra reach is necessary. They are particularly effective in drilling tough, high-tensile-strength materials, such as stainless steel, Inconel, and titanium.

The round shanks of the Drill America Aircraft Extension Drills allow them to be used with a wide variety of tool-holding systems, providing users with greater flexibility and convenience in their drilling operations.

In summary, Drill America's Cobalt Aircraft Extension Drills offer enhanced performance and durability when working with challenging materials, thanks to their specialized design and manufacturing standards. The gold oxide surface treatment, self-centering split point, and available length options make these drills a valuable asset for a wide range of industrial and aerospace applications.

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