Solid Carbide 4 Flute End Mills Specification: Diameter:3mm-20mm Number of Flute:4 Overall Length:50mm-100mm HRC55 Package Included: 1piece Solid Carbide End Mill The care of the knife 1 Keep your knife clean. After each use, please use the standard industrial solvent to clean the knife. 2 Apply a small amount of machine oil to prevent rust. 3 Clean all stains with the knife to prevent slippage during use. 4 Do not try to change the shape of the knife to avoid undue damage.The item "3mm-20mm Solid Carbide Long Series End Mill 4 Flute Milling Cutter Drill Bit" is in sale since Monday, September 9, 2019. This item is in the category "Business, Office & Industrial\CNC, Metalworking & Manufacturing\Metalworking Equipment\Machining Centers & Milling Machines". The seller is "arvinchan_shop" and is located in Shenzhen. This item can be shipped worldwide.