Machining

Front

The internal diameter of a hole

Back

A bore

Front

the operation of making or finishing circular holes

Back

boring

Front

Chips

Back

cuttings made by a cutting tool

Front

Back

center drill

Front

Chamfer

Back

beveled edge

Front

a recessed hole conically for a screw head

Back

countersunk

Front

Die

Back

external threads

Front

the act of making a hole using a twist drill

Back

drilling

Front

the act of using a file to smooth and flatten a surface

Back

filing

Front

forming a pattern on the outside of a shaft by impressing the rollers into the surface

Back

knurl