Drill America GLBCO Series 3/16 x 6 Cobalt Aircraft Extension Drill Bit (Pack of 12)

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

The 135° split point design of the Drill America Aircraft Extension Drills is self-centering and reduces thrust, making them highly effective in drilling tough, high tensile strength materials like stainless steel, inconel, and titanium. This feature helps prevent the drill from walking, providing precision and accuracy during the drilling process.

The round shanks of these drills allow them to be used with a wide variety of tool holding systems, offering versatility and flexibility in different applications.

Interestingly, the gold oxide surface treatment used on these drills is a thinner oxide coating than the more commonly used black oxide. Despite this, the performance of the gold oxide-treated tools is similar to that of uncoated tools, demonstrating the quality and effectiveness of the Drill America Cobalt Aircraft Extension Drills.

For situations where extra reach is required, these drills are available in both 6-inch and 12-inch overall lengths. This ensures that users can choose the appropriate length to suit their specific needs, whether they are working in tight spaces or require additional reach.

In summary, the Drill America Cobalt Aircraft Extension Drills are a highly capable and versatile tool, designed to excel in drilling tough, high-strength materials. Their combination of innovative features, quality construction, and versatile design make them a valuable asset for a wide range of industries and applications.

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