Drill America Cobalt Drill Bit Set (1/16-1/2 X 64ths)

The Drill America 29-piece drill bit set with a 135-degree split point is designed for heavy-duty use and comes in a durable metal case. These drill bits are manufactured to meet the National Aerospace standard 907. They are made from high red hardness materials, allowing for speeds up to 30 percent higher than conventional M2 High-Speed Steel bits. This makes them particularly effective when drilling tough, high tensile strength materials like stainless steel, inconel, and titanium.

The 135-degree split point is self-centering, which reduces the amount of thrust needed during drilling. The use of cobalt steel in these tools improves their cutting ability in harder metals such as stainless steel and nickel alloys. Gold oxide is a thinner surface treatment used to identify cobalt steel tools, similar to the performance of uncoated tools. The round shanks of these bits allow them to be used with a wide variety of toolholding systems.

Additionally, when the spiral fluted tools are run in a counterclockwise direction (right-hand cut), they effectively remove chips from the cut, reducing clogging. This ensures smooth and efficient drilling.

The set includes fractional sizes ranging from 1/16" to 1/2" in 1/64" increments. With their durability and high-performance capabilities, these cobalt steel drill bits are a reliable choice for drilling hard metals. The metal case provides convenient storage and organization for the set.

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