TORK CRAFT COUNTERSINK HSS 19MM 90 DEGREE

90° HSS Industrial Quality Countersink

The five flute rose pattern design has been a principle countersink design

for over 100 years. The odd number of flutes reduces chatter on steel, brass and

aluminium. Also used for plastic and wood application.

Common uses:

A common use is to allow the head of a countersunk bolt or screw, when placed

in 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 or

tapping operation thereby improving the finish of the product and removing any

hazardous sharp edges.

Regardless

of the name given to the cutter, the surface being generated may be a conical

chamfer (plunging applications) or a beveled corner for the intersection of two

planes (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.