6flute,45degree helix,corner radius

6flute,45degree helix,corner radius 1.Designed to machine high hardened materials; 2.Suitable for dry cutting,high speed cutting thanks to newly ; 3.developed raw-material and new coating; 4.Excellent workpiece finishes; 5.Deep slotting is possible by reduced neck; 6.Corner radius against chipping in high speed; 7.Higer wear-resistance main series:G8A39 corner radius:R0.25 R2.0; mill diameter:6 20mm; shank diameter:6 20mm; length of cut:6 76; overall length:50 140