counterbore

IPA: kˈaʊnɝbˈɔri

A cylindrical recess, typically machined around a hole to admit a screw so that it sits flush with a surface.
The tool with which a counterbore is machined.

Examples of "counterbore" in Sentences

A patch covers the opening of the counterbore.
The counterbore is often covered with a dust cover.
Figure 5 Counterboring with the piloted counterbore
The uppermost counterbores shown in the image are the same tool.
This arrangement substantially prevents oversizing of the counterbore.
An end plug having a bore and a counterbore is threaded into the body.
The seat has a counterbore adjacent to its inner edge defining a shoulder.
Counterboring/countersinking with counterbore/countersink and turning tool3.
Counterboring/countersinking with counterbore/countersink and turning tool1.
Counterboring/countersinking with counterbore/countersink and turning tool7.
- Did the trainee countersink/counterbore both sides of a through hole properly?
- Did he set the correct rotational speed and were counterbore diameter and depth correct?
Counterboring/countersinking with counterbore/countersink and turning tool Institut fr berufliche Entwicklung e.
- Internal side-cutting tool (boring tool) or spiral-fluted counterbore (three-lipped twist drill) to produce the hole with machining allowance for reaming.
- Combination tools (piloted counterbore, step countersink, combination countersink) can be economically used since several operations are combined into a single one.
Counterboring/countersinking with counterbore/countersink and turning tool is a finishing operation on the internal surface of internally premachined rotationally symmetrical parts.