Specially-designed flutes keep these bits centered as they drill, resulting in straighter, rounder holes with tighter tolerances. Also known as double-margin drill bits.

The parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow.

The short flutes on these jobbers'-length bits provide increased rigidity for drilling straighter holes.

Three cutting edges instead of the typical two enable these bits to drill holes with a smoother finish than other bits.

The parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow.

These jobbers'-length bits have the rigidity and length required for most applications.

The sharp point allows for gradual penetration to reduce friction and eliminate cracking and chipping when drilling in plastic.

Cobalt steel bits are heat resistant and maintain their sharp edges when drilling hard material. They are for use in both hand-held drilling and machine-tool applications.

The parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow.

More wear resistant than cobalt steel and high-speed steel, carbide-tipped bits maintain a sharper, harder edge at high temperatures for excellent performance on abrasive material, such as plastic. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill.

Use these bits for general purpose drilling in most material.

The sharp point allows for gradual penetration to reduce friction and eliminate cracking and chipping when drilling in plastic.