back-counterbore
nounEtymology From back- + counterbore.
1
A counterbore that is so made.
- There's no second operation on these parts. The backside features are all back-counterbores and back-spotfaces.
back-counterbore
verbEtymology From back- + counterbore.
1
Engineering, Machining, Mechanical engineering, Natural sciences, Physical sciences To counterbore from the backside of a workpiece by using a boring tool that passes through a through hole, deploys a cutting edge (or receives it by manual insertion from an operator), counterbores 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-spotface all of these features on the backside.