90° face cutting tool for rifle barrels.

There are two basic types of target crown - the 'step' and the '11 degree'. The muzzle of the step crown is first cut 90 degrees of barrel (square) then about half the muzzle radius is counter sunk with the wall of the counter sink usually at an angle of about 45 degrees. The muzzle of the 11 degree crown is sunk at an angle of 11 degrees from square (79 degrees of barrel). The 11 degree angle extends either the full muzzle radius or the greater part of muzzle radius.

This tool is used to face your muzzle perfectly square 90 degrees with the barrel ID. For ideal accuracy, the muzzle exit hole has to be perfectly concentric and perpendicular. This tool is designed to trim the face square while minimizing chatter. It has a 1/4-20 threaded shank to work in a handle for hand cutting, or in a drill adapter for use on a drill press or hand drill. A pilot should always be used and is available on this site in a wide variety of calibers. Cutting fluid should also be used and is available on this site.