Compatible Upgrade JTactical 80% AR15/AR10/ .308 Lower Receiver Jig "TiN" Drill Bit Kit

// Our jig tooling drill bit kits are a SIGNIFICANT UPGRADE  to other tooling kits on the Market. "TiN" Coated high speed steel drill bits, custom cut to our specifications. Kit is compatible with Jtactical.com 80% AR-15 Lower Receiver Jig. Simply the best AR15 / AR10 / .308 lower receiver jig gunsmith tooling.  How to Build AR-15 & AR-10 .308 80% Lower Receiver Video's & Instruction Manuals Replacement End MillsReplacement Drill BitsJ Tactical Lower Receiver Jig Kit