The straight shank is the most usual style on modern drill bits, by number manufactured.
The whole of the drill bit, shaft and shank, is usually of the same diameter. It is held usually in a three-jaw drill chuck.
Such a drill bit is called a reduced-shank or blacksmith's drill.
The hex shank allows for high torque. While they do make different size hex shanks, the most common is the 1/4″ Straight Shank
Another common shank is the Straight Shank. These are used a lot with router bits and drill bits. As you can see by the shaft of the bit, a shank is usually the same size as the drill bit.
Drill bits are cutting tools used to remove material to create holes, almost always of circular cross-section. Drill bits come in many sizes and shapes and can create different kinds of holes in many different materials.
Available in a variety of sizes
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