Drill bit

（重定向自Drilling bits）

Drill bit (upper left), mounted on a pistol-grip corded drill.

Diamond coated 2mm bits, used for drilling materials such as glass.

A 5 mm carbide bit displaying shallow point angle.

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 shape and can create different kinds of holes in many different materials. In order to create holes drill bits are attached to a drill, which powers them to cut through the workpiece, typically by rotation. The drill will grasp the upper end of a bit called the shank in the chuck.

单词	Drilling bits
释义	Drilling bits 英语百科 Drill bit （重定向自Drilling bits） 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 shape and can create different kinds of holes in many different materials. In order to create holes drill bits are attached to a drill, which powers them to cut through the workpiece, typically by rotation. The drill will grasp the upper end of a bit called the shank in the chuck.
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