3/8" CNC CORNCOB FORM RUFFER FOR MILLING THE MAGWELL ON AR15 / AR10 / .308 LOWER RECEIVERS

Part# 38MAG-ROUGHING AGT's proprietary "F23" coating  for extreme wear resistance and lubricity. These end mills deliver improved performance,and set a new benchmark for machining the firing pocket and the mag well.The combination of our extended length 3/8" rougher and 1/4" finisher is a GAME CHANGER!Before now, there has never been extended length end mills rigid enough,to efficiently machine the mag well from one side.AGT's new design has overcome that obstacle.With a simple pilot hole hole through the middle you can now,rough and finish from one side, with a perfectly smooth finish all the way downto the bottom of mag well. No more flipping the lower on the fixture.No more ugly mismatches and hand blending.Just a finely machined lower that you can be proud of! Course Pitch RougherHigh performance variable 3 flute geometry, .750" LOC for rigidity, .030" corner radius for strength, necked relief reach of 2.700" from end of tool with a 6.0" overall length.   Complete Kit for CNC Milling of AR15 Lower Magwell and Firing Pocket1/4" End Mill Finisher for Magwell3/8" End Mill Finisher for Firing Pocket