Black-oxide drill bits produce less friction than uncoated drill bits.

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Also known as mechanics’ bits, these are shorter and more rigid than jobbers' bits but longer than short-length bits. A split point keeps the bit centered without a pilot hole.

Drill bits with flats on shank have three flat sides to prevent the bit from slipping in the drill chuck.

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Black-oxide drill bits produce less friction than uncoated drill bits.

Drill bits with a split point keep centered without a pilot hole.

For technical drawings and 3-D models, click on a part number.

Holes in these bits allow coolant to be run through the tool for more efficient chip evacuation. Use them in CNC machines with coolant-through technology. Made of solid carbide for the highest accuracy and longest tool life, they are harder, stronger, and more wear resistant than high-speed steel, cobalt steel, and carbide-tipped bits. They retain a sharp, hard edge at high temperatures for the best performance on hard and abrasive material. A titanium aluminum nitride (TiAlN) coating gives them additional wear and temperature resistance. The four-facet point keeps the bit centered without a pilot hole. These bits require rigid toolholding to prevent breakage and should not be used in hand-held drilling applications.

Maintenance-length drill bits are shorter and more rigid than jobbers'-length bits but longer than short-length bits. They hold up better than jobbers' bits when drilling in hard metal. Also known as mechanics' bits.

For technical drawings and 3-D models, click on a part number.