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.
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Counterbores w/ Interchangeable Pilots Aircraft long length
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Interchangeable Pilots for Counterbores 1/8 to 2 Inch Diameter, 3/32 to 1/2 Hole Size
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Interchangeable Pilots for Counterbores Aircraft Short Length 0.250 1/4 to 1 Inch
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Straight Shank Counterbores - Interchangeable Pilot
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Cap Screw Counterbores
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$985.99USD
Availability: In Stock 10-15 Business Days
$13.99USD
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$17.99USD
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$10.99USD
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$605.99USD
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$513.99USD
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$235.99USD
2-5 Workdays to modify
$64.99USD
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$28.08USD
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$39.54USD
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$28.99USD
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$29.99USD
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