can be used for dry machining. Suitable for process Copply,Alloy,Iron and Steel under HRC55(HRA78).High Performance Seno Hrc55 Long Neck Flat Carbide End Mill 4 Flutes Milling Cutter Cnc... 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. High micro hardness,high abrasion resistance,good toughness. HRC55 4 Flutes Long Neck Corner Radius End Mill – ZANHO-ZHANHONG Wokesi 5mm Cutting Radiu,10mm Shank Dia,150mm OAL,HRC55,2Flutes,Extra Long,TiAlN Finish,Solid Carbide,Ball Nose End Mill Endmills CNC can be high-speed processing. Package: 1xEndmill Cutter. Shop O-Ring, Blck Nitrile Bun-n, 0.042 ID x 0.050 CS/Width, (Mini #2M)(50 Pck) online t best price in Kuwit. B09R29W4LG 4Flutes Square end mill.