Product Description

Counter Bores

There is high quality counter bores offered by us that is a cylindrical flat-bottomed hole that enlarges another coaxial hole, or the tool used to create that feature. The bores hole is typically used when a fastener, such as a socket head cap screw, is required to sit flush with or below the level of a work piece's surface. Counter bores enlarge the top of an existing hole to create a cylindrical-shaped opening with a flat bottom that acts as a seat for the head of a screw or wood plug.