back-countersink

back-countersink

English

Etymology

From back- +‎ countersink.

Verb

back-countersink (third-person singular simple present back-countersinks, present participle back-countersinking, simple past back-countersank or back-countersunk, past participle back-countersunk)

  1. (machining) To countersink from the backside of a workpiece by using a tool that passes through a through hole, deploys a cutting edge (or receives it by manual insertion from an operator), countersinks the far side, retracts the cutting edge (or has it removed), and then retreats back through the hole (toward the tool's origin).
    Hypernyms: countersink < cut
    Coordinate terms: back-counterbore, counterbore; back-spotface, spotface; backbore, bore
    We won't need any second operation on these parts. We're going to back-counterbore and back-countersink all of these features on the backside.

Noun

back-countersink (plural back-countersinks)

  1. A countersink that is so made.
    Hypernyms: countersink < feature
    Coordinate terms: back-counterbore, counterbore; back-countersink, countersink; bore
    There's no second operation on these parts. The backside features are all back-counterbores and back-countersinks.
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