3/8" End Mill For Milling the Firing Pocket on AR15/AR10 Lower Receivers
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AGT's proprietary "F23" coating for extreme wear resistance and lubricity. This end mill is designed to rapidly machine the firing pocket. High performance 3 flute geometry, .750 flute length of cut for rigidity, .010 corner radius for strength, necked relief reach of 1.320 from end of tool, 4.0 overall length allows easy clearance of buffer tube tower, 3/8 shank.