High Performance Solid Carbide End Milling TOOL SELECTOR HIGH-PERFORMANCE FINISHING FINISHING AND FINE FINISHING HIGH PERFORMANCE SOLID CARBIDE END MILLING HARVI IV HARVI II Long Series HA4R8RA/SE..R HA4R8RA/SE..X..DM HA2L5RA..L HA2L5RA..X Tool type Rougher   Finisher     Chamfering Main operation Workpiece material Primary M S M S P M S P M S Secondary P H P H K H K H Corner style Corner radius [Rİ] 0,50–6mm 0,50–6mm 0,20–6mm 0,20–6mm Corner chamfer width — — — — [BCH] Cutter diameter [D1] 10–25mm 10–25mm 6–25mm 6–25mm Length of cut 1,8–4xD 1,8–4xD 3xD 5xD Maximum cutting depth 22–45mm 40–100mm 18–75mm 30–125mm [Ap1 max] Flute helix angle 35° 35° 43° 43° Number of flutes [ZU] 8 8 5 5 Center cutting Additional operations  Primary  Secondary kennametal.com