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About Counterbores
Counterbores are tools for cutting recessed holes in a workpiece, typically on center with a smaller hole. Counterbores are frequently cut in order to allow screw head seating in the recessed hole, so that the screw head does not protrude above the material surface. Counterbores may also be used to square the screw head’s seating surface perpendicular to the axis of the hole, an operation known as spot facing. Counterbores are available in both English and metric screw sizes.
Engineering Web: Counterbores - Machine Design
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example machine design in VX | Machine Design The device magazine-feeds a part, clamps the part in place, drills, counter-bores, and taps several holes, and then ejects the part. |
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All-time popular content | Machine Design The device magazine-feeds a part, clamps the part in place, drills, counter-bores, and taps several holes, and then ejects the part. |
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Making Sure Bolts Keep Clamping | Machine Design (nordlock.com). They?ve tested their bolt-securing system, a pair of special washers, and found the wedge-locking method successfully uses tension |
