Fraction Sizes Drill Bits HSS Most made in USA.
These are all the best and highest quality bit made.
Drill bit angle 118 is more aggressive than 135. It is often used for drilling into harder materials, while 135 is used for softer materials.
Drill bits are cutting tools used in a drill 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. In order to create holes drill bits are usually 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.