Counterbores
A counterbore is a cylindrical flat-bottomed hole that enlarges another coaxial hole, or the tool used to create that feature. A counterbore 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.
Whereas a counterbore is a flat-bottomed enlargement of a smaller coaxial hole, a countersink is a conical enlargement of such. A spot-face often takes the form of a very shallow counterbore.
As mentioned above, the cutters that produce counterbores are often also called counterbores; sometimes, to avoid ambiguity, the term counterbore cutter is used instead.
Whereas a counterbore is a flat-bottomed enlargement of a smaller coaxial hole, a countersink is a conical enlargement of such. A spot-face often takes the form of a very shallow counterbore.
As mentioned above, the cutters that produce counterbores are often also called counterbores; sometimes, to avoid ambiguity, the term counterbore cutter is used instead.
In Stock
$82.77CAD
In Stock
$522.26CAD
In Stock
$314.68CAD
In Stock
$328.29CAD
Availabilty In Stock to 5-10 days
$100.73CAD
Availability In Stock
$43.52CAD
In Stock
$46.48CAD
Availabilty In Stock
$309.98CAD
Stock-3 Weeks
$152.09CAD
In Stock
$88.33CAD
In Stock
