Chamber reamer

A chamber reamer is a specific type of fluted reamer used by gunsmiths and firearms manufacturers to cut the chamber of a handgun, rifle, or shotgun. The chamber reamer is inserted into the bore of a barrel and held stationary while the barrel is turned around it (typically by means of a lathe). The reamer slowly cuts away material, leaving a chamber capable of accepting a specific cartridge.[1]

  1. ^ Chambering Rifles for Accuracy (Gunsmithing Student Handbook Series). Fred Zeglin Gordy Gritters (2018). 124 pag. ISBN 978-0983159858