Drill America D/ACO3/8P6 3/8 Cobalt Heavy Duty Drill Bit (Pack of 6)

Manufactured to the National Aerospace standard 907, these drill bits are designed to deliver exceptional performance in a wide range of applications. Crafted from heat-resistant cobalt, they exhibit higher red hardness, enabling speeds up to 30 percent greater than those achievable with High-Speed Steel drills. These cobalt steel tools are particularly effective in drilling tough, high tensile strength materials such as PH stainless steel, inconel, and titanium.

The cobalt steel composition of these tools sets them apart from their high-speed steel counterparts, providing improved performance when cutting harder metals like stainless steel or nickel alloys. The gold oxide surface treatment, which is thinner than the more common black oxide, serves to identify these tools as cobalt steel, while their performance remains comparable to uncoated tools.

The round shanks of these drill bits allow for use with a diverse array of toolholding systems, ensuring versatility and compatibility across various machine setups. When operated in a counterclockwise (right-hand cut) direction, the spiral fluted design of these tools effectively evacuates chips up and out of the cut, reducing the risk of clogging and improving overall efficiency.

Whether drilling through the toughest materials or seeking to maximize productivity, these cobalt steel drill bits, manufactured to the rigorous National Aerospace standard 907, offer a reliable and high-performing solution for a wide range of applications.

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