What is countersinking?

In machining, countersinking is performed using a countersink, for example to countersink screws.

Countersinking in machining

Countersinking in machining involves using a countersink - also known as a countersink cutter - to chamfer or enlarge existing holes in the material. As a result, heads of screws or bolts do not protrude above the surface of the material. The screws or bolts are thus countersunk.

Watch the video featuring the latest generation of countersinks here...