Specification Brand : WKSTOOL BulletPoint1 : Cutting Diameter:4mm,Shank Diameter: 4mm,Overall Length:50mm. BulletPoint2 : 2.Material:Tungsten carbide,High quality TiAlN coating,getting long tool life. BulletPoint3 : 3.Suitable for process Copper,Alloys,Iron and Steel under HRC55,High Performance. BulletPoint4 : 4.High micro hardness,high abrasion resistance,good toughness.can be high-speed processing. BulletPoint5 : Package: 1x Endmill Cutter CutType1 : Finishing CutType2 : Roughing ExternallyAssignedProductIdentifier1 : 758910187631 ExternallyAssignedProductIdentifier2 : 0758910187631 ExternallyAssignedProductIdentifier3 : 00887861154659 FinishType : TiAlN ItemName : Wokesi 4mm Cutting Dia,4mm Shank Dia,50mm OAL,HRC55,4Flutes,TiAlN Finish,Solid Carbide,Roughing End Mill Endmills CNC Router Bits Cutting Tools for Milling Grooving Slotting (4mmBlade*50mmOAL) ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 6 inches ItemPackageDimensions_Width : 3 inches ItemPackageQuantity : 1 ItemShape : Straight ItemTypeKeyword : square-nose-end-mills Manufacturer : WOKESI Material : Carbide ModelNumber : BRCT330 NumberOfFlutes : 4 NumberOfItems : 1 PartNumber : CEM55S ProductDescription : 1.Widely used in hardness from copper,cast iron,aluminium alloys,titanium alloy,mold steels,stainless steels,alloys steels, tools steels to the high hardness of HRC55 or more processing materials. 2.Chipbreaker rougher-finisher end mill removes in less time than conventional end mills,good chip removal of the most suitable for processing high-speed roughing and grooving. 3.Solid carbide tools offer long tool life and faster cutting speeds than other substrates,but more brittle.Make sure work piece and machine are stable,use hydraulic chucks,high quality collet chucks,or shrink fit chucks. 4.Please adjust the speed,feed and cutting depth according to actual cutting conditions. 5.Tool overhang,please use the required amount of minimum size,amount of long overhang is high vibration,turn it to lower the number of feed. 6.Adapt to several kinds of cooling conditions, for example oil mist,water,oil,air cooling.can be used for dry machining.