5/16 inch end mill bit - custom, carbide 3-flute with 1/4" inch shank (to fit into a compact router)
If you are planning to complete more than 3 lowers, it is recommended that you purchase one end mill bit for every three lowers, and have one extra end mill bit just in case.
Note: This end mill bit is designed to only work with the 5D Tactical (80% Lower Jig) using a handheld router. This end mill bit is NOT compatible nor recommended to be used on any other 80% lower jigs other than the 5D Tactical 80% Lower Jig.
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