Clymer Pistol Chambering Reamers Rimmed Finisher Style Barrel Cylinder Pilots

CLYMER pistol chambering reamers made from M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Roughers are .010" smaller in diameter than the final size and should be used to save wear on the Finish Reamer when many chambers are cut. If only a few chambers will be cut, a Finish Reamer is all you need. SPECS: Pistol Reamers — 6, right-hand cutting, straight flutes. Solid pilot. Integral throat. Available in two pilot diameters: Barrel (for single-shot or semi-auto pistol and rifle barrels) and Cylinder (for revolver cylinders). 7/16" diameter shank with 3/8" square drive; depending on caliber, some calibers use a round shank for .22 RF.