2 Pack 5/16" 3 Flute, "ZrN" Coated Carbide End Mills Compatible with Easy Jig Gen 2, 5d Tactical Jigs

End Mill Dimensions:5/16" Diameter1/2" Length Of Cut1/4" Reduced Shank For Router3-3/4" Over All Length"Zrn" Coated For Aluminum Let's Compare Tooling:AGTCarbide:                    Solid 100% American Made End Mill Coating:     "ZrN" for hardness and lubricityDrill Bit Coating:      "TiN" specifically for aluminumGeometry:                 Proprietary design for aluminum application Other BrandsCarbide:                     UnknownEnd Mill Coating:      NoneDrill Bit Coating:      "Black Oxide"  (not recommended for aluminum)Geometry:                 Unknown Our end mill is a SIGNIFICANT UPGRADE  to the end mill you are currently using.Our High Performance Upgrade end mill has been tested and is completely compatible with the jigs listed above.Our High Performance End Mills have a unique geometry extending tool life and eliminating vibration and harmonics.This design allows heavier chip load per tooth, while leaving a smoother finish.In addition "Zrn" Coating specifically for aluminum adds hardness and lubricity to the cutting edge of the end mill. 5D Tactical Jig Instructions What 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 Video's & Instruction Manuals