3/8' CNC and Hand Milling End Mill For The Magwell AR15/AR10 Lower Receivers
This finishing style end mill is only to be run on a CNC or hand mill and only for finishing the walls of a magwell from one side,
This 3/8 diameter tool leaves a large radius in the corners of the magwell, so you must make the corner rads smaller with the ¼ diameter mag finishing tool after using this tool to finish the side walls.
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