Editing Reamer (section)

{{short description|Rotary cutting tool}}
{{other uses}}

A '''reamer''' is a type of rotary cutting [[tool]] used in [[metalworking]]. Precision reamers are designed to enlarge the size of a previously formed hole by a small amount but with a high degree of accuracy to leave smooth sides. There are also non-precision reamers which are used for more basic enlargement of holes or for removing [[Burr (edge)|burrs]]. The process of enlarging the hole is called '''reaming'''. There are many different types of reamer and they may be designed for use as a hand tool or in a [[machine tool]], such as a [[milling machine]] or [[drill press]].