back-countersink

名词 n. 动词 v.

英文释义

名词 n.
  1. A countersink that is so made.
    — There's no second operation on these parts. The backside features are all back-counterbores and back-countersinks.
动词 v.
  1. 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).
    — 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.

词形变化

back-countersinks present,singular,third-person back-countersinking participle,present back-countersank past back-countersunk past back-countersunk participle,past back-countersinks plural

词源

词源 1
From back- + countersink.
词源 2
From back- + countersink.
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