2PK 3/8" 3FL 3/4" LOC, 4" OAL "ZrN" Coated End Mills For 80% AR15/AR10 .308 Lower Receiver Jig
Upgrade 2PK 3/8" 3FL, 3/4" LOC (length of cut), 4" OAL (overall length) 80% AR-15 & AR-10 .308 Lower Receiver Jig End Mill. Compatible with most lower receiver jigs.
Our tooling is a Significant Upgrade to any jig tooling on the market.
21st. Century Geometry " ZrN" Coated, Solid Carbide End Mills
Our 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 lubricity.
What is"ZrN' Zirconium Nitride coating? CLICK HERE to see what can it do for you!