3/8" 3FL 3/4" LOC, 4" OAL "ZrN" Coated American Made Solid Carbide End Mill

Included: 1 ea. 3/8" 3 Flute 3/4" LOC, 4" OAL  "ZrN" Coated Solid Carbide End Mill Upgraded "ZrN" coated solid American Made carbide 80% AR-15 & AR-10 .308 lower receiver  end mills.  Our End Mills have a unique geometry, extending tool lifeHigh performance flutes eliminating vibration and harmonicsThis 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