COUNTERSINK HSS 12 MM 1/2' 90 DEGREE

90° HSS Industrial Quality Countersink

The five flute rose pattern design has been a principle countersink designfor over 100 years. The odd number of flutes reduces chatter on steel, brass andaluminium. Also used for plastic and wood application.

Common uses:

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).

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.