Manson Reamers Carbide Bolt Face Squaring Burr .446" PPC Bolt Face

The Manson Reamers Carbide Bolt Face Squaring Burr is designed to be used with the Tooling Block (sold seaprately). To use these burrs, place a stripped, trued and lapped receiver in an Action Wrench and hold the Wrench in the Bench Vise with the receiver horizontal. Screw the Tooling Block into the receiver threads and tighten it snugly- don't overdo it- against the front receiver ring with a suitable wrench. Strip the bolt completely except for the extractor. Apply Dykem or machinist lay-out f