The MANSON PRECISION .357 Cal. Throat Reamer is designed to uniformly open cylinder throats for improved accuracy with both lead and jacketed bullets.
It comes with removable pilots for a custom fit to individual chambers, with the .357 caliber reamer provided with a .354" pilot.
This hand turned reamer is made of high-speed steel, measures 4" long with a ΒΌ" shank, and features a 6 flute, helical ground design for precision work.