Manson Precision Revolver Cylinder Throating Reamer Pilot Pack .357 Cal

Easy to use, hand turned reamer opens the cylinder throat to a uniform diameter for best accuracy with lead and jacketed bullets. Removable pilots let you select the correct pilot for the closest possible fit to individual chambers. .45 Caliber corrects out of spec, smaller-than-bore-diameter cylinder throats on .45 Colt and other .45 caliber revolvers. Opens throat to .4525". Provided with .4480" diameter pilot. .44 Caliber fits .44 Magnum, .44 Special and .44-40 revolvers. Opens throat to .431". Furnished with .4270" pilot. .357 Caliber from .3545" to .357". Open the throat to .358". .357 furnished with a .354" pilot. Pilot Pac Mfg: Manson Precision SPECS: High-speed steel. 4" (10cm) long, A 1/4" shank, 6 flute, helical ground.