A countersink is a conical hole cut into a manufactured object.The same term is used for the cutter used to cut such a hole.
A common use is to allow the head of a countersunk bolt or screw, when placedin the hole, to sit flush with or below the surface of the surrounding material.A countersink may also be used to remove the burr left from a drilling ortapping operation thereby improving the finish of the product and removing anyhazardous sharp edges.
Regardlessof the name given to the cutter, the surface being generated may be a conicalchamfer (plunging applications) or a beveled corner for the intersection of twoplanes (traversing applications).
These Tork Craft carbon countersinks are referred to as fluted countersinks andmainly suitable for wood
Made in China to Tork Craft specifications