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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 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).
These Tork Craft carbon countersinks are referred to as fluted countersinks and
mainly suitable for wood
Made in China to Tork Craft specifications
