Check the listing for details. Compatible 5D Tactical, Gen 2, Juggernaut Ultimate, 5/16", Premium ZrN End Mill. Condition: New. Listed at 44.99 USD. American Gunsmith Tooling 100% American Made Gunsmith Tooling BEWARE!! of cheap knock off tooling being sold on EBAY. The tooling may look like ours, but I promise you they are not equal. Our tooling is 100% American Made!!. Tooling is made in a American Facility by an American Workforce using only American Made raw materials!! I see no mention of where, how, or with what raw materials and what coating these knock off tools are being made. Between our website and EBAY we have sold over 10,000 of these 5/16" end mills Check Out Our Other Items for discounts on 2 Packs and More! Compatible Application: 5D Tactical, 80% Arms Gen 2 Jigs Specifications: 5/16" Diameter 1/2" Length Of Cut 1/4" Reduced Shank For Router 3.75" Over All Length "Zrn" Coated For Aluminum We here at American Gunsmith Tooling have designed and tested this end mill to run with the higher RPM tools necessary to complete your project. This end mill is nothing like you have ever seen or used before. The competition's tooling is of decades old geometry, which is no longer applicable in today's applications. AGT has once again pushed the boundaries of tooling geometry and coatings to bring you the best end mills on the market. We use 100% American raw materials and American workers to produce these amazing tools, and the best part is we found away to sell these tools at inferior import prices. So buy with confidence that this end mill will Outperform and Outlast any tooling on the market.. Our end mills have a unique geometry extending tool lifeHigh performance flutes eliminates vibration and harmonics.This design allows heavy chip load per tooth,for maximum material removal in aluminum. For more information about our proprietary tooling and coatings visit americangunsmithtooling.com