countersink
verb (used with object)
to enlarge the upper part of (a cavity), especially by chamfering, to receive the cone-shaped head of a screw, bolt, etc.
countersinking
-
present participleof countersink.present participle
A verb form that is used in progressive verb constructions and may also function as a modifier or a gerund.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
I told him I thought countersinking the nozzle was a good idea.
From "October Sky" by Homer Hickam
That is to say, rivet holes in plates to be riveted should have the burr or sharp edge taken off, either by countersinking, by reamer, or set.
From Scientific American Supplement, No. 810, July 11, 1891 by Various
If the countersinking is done before the end of the work is squared, it will not be true with the centre-drilled hole.
From Modern Machine-Shop Practice, Volumes I and II by Joshua Rose
Fasten the end pieces on with screws, countersinking the heads of the vise end.
From The Boy Mechanic: Volume 1 700 Things for Boys to Do by Popular Mechanics Co.
The object of countersinking these holes is to reduce the bearing surface of a small shaft that is to be supported in the holes and must be as free from friction as possible.
From The Boy Mechanic: Volume 1 700 Things for Boys to Do by Popular Mechanics Co.
