Drill America 3/16 Quick Change Cobalt Drill Bit with Hex Shank, COHEX Series

The COHEX Series from Drill America is designed for high-performance drilling in a wide range of materials. Featuring a heat-resistant cobalt construction and a precision-ground 135-degree split point, these drills offer exceptional durability and self-centering capabilities.

The common flute and overall length of the COHEX drills minimize the need for adjustment during tool changes, ensuring a seamless workflow. Furthermore, the precision grinding process ensures a high degree of concentricity between the shank and body diameter, enhancing the drill's accuracy and stability.

These drills are ideal for drilling in both tough, high-tensile-strength materials as well as low to medium-tensile-strength materials. The 1/4-inch hex shank allows for compatibility with quick-change impact drivers, providing additional versatility and convenience.

The standard 3/8-inch length between the chucking slot on the shank and the end of the shank ensures a secure fit and reliable performance. Cobalt steel tools, like the COHEX drills, are similar to high-speed steel but with an increased cobalt content, resulting in improved performance when cutting harder metals, such as stainless steel or nickel alloys.

The gold oxide surface treatment is a thinner oxide coating compared to the more common black oxide, but it provides comparable performance to uncoated tools. This surface treatment helps to identify the cobalt steel construction of the COHEX drills.

Manufactured to the National Aerospace Standard 907, the COHEX drills from Drill America exemplify precision engineering and uncompromising quality, making them a reliable choice for a wide range of drilling applications.

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