Compatible Upgrade M1 Machining 80% AR-15 Lower Receiver Jig Tooling Kit

// Our Jig Tooling Kits are a SIGNIFICANT UPGRADE  to other Tooling Kits on the Market. Upgraded AR15 / AR10 / .308 80% Lower Receiver Jig Tooling Kit "3rd Generation ZrN" Coated Solid Carbide End-Mills. All End Mills have a unique geometry, extending tool life. High performance flutes eliminating vibration and harmonics. This design allows heavy chip load per tooth, for maximum material removal in aluminum. "ZrN" Coating for hardness and lubricityWhat is"ZrN' Zirconium Nitride coating? CLICK HERE  to see what can it do for you! How to Build AR-15 & AR-10 .308 80% Lower Receiver Video's & Instruction Manuals Replacement End MillsReplacement Drill BitsReplacement Drill Bit Kit