D1 9 ZP W1 D1 S [mm] [mm] [mm] 10 10.000 2.20 1.70 12 12.000 2.90 2.38 16 16.000 2.90 3.18 20 20.000 4.00 3.97 25 25.000 4.70 4.76 32 32.000 5.90 6.35 40 40.000 7.00 7.94 W1 S 50 50.000 9.60 7.94 Suitability and starting values for cutting speed (vc), feed (f) and depth of cut (ap). Refer to our Machining Calculator app for further calculations. Product RE P M K N S Hvcfapvcfapvcfapvcfapvcfapvcfap [mm] [m/min] [mm/tooth] [mm] [m/min] [mm/tooth] [mm] [m/min] [mm/tooth] [mm] [m/min] [mm/tooth] [mm] [m/min] [mm/tooth] [mm] [m/min] [mm/tooth] [mm] 20° F F geometry with highly positive design for light machining. ZP 20ER-F M8310 – 305 0.27 1.0 155 0.24 1.0 – – – – – – – – – – – – E FM geometry with sharp neutral design for light to medium machining. ZP 10ER-FM M8310 – 305 0.36 0.5 – – – 285 0.36 0.5 – – – – – – 60 0.15 1.0 M8345 – 210 0.36 0.5 – – – – – – – – – – – – – – – ZP 12ER-FM M8310 – 300 0.36 0.6 – – – 285 0.36 0.6 – – – – – – 60 0.15 1.0 M8345 – 205 0.36 0.6 – – – – – – – – – – – – – – – ZP 16ER-FM M8310 – 290 0.36 0.8 – – – 275 0.36 0.8 – – – – – – 55 0.15 1.0 M8345 – 200 0.36 0.8 – – – – – – – – – – – – – – – ZP 20ER-FM M8310 – 285 0.36 1.0 – – – 270 0.36 1.0 – – – – – – 55 0.15 1.0 M8345 – 195 0.36 1.0 – – – – – – – – – – – – – – – ZP 25ER-FM M8310 – 275 0.36 1.3 – – – 260 0.36 1.3 – – – – – – 55 0.15 1.0 M8345 – 190 0.36 1.3 – – – – – – – – – – – – – – – ZP 32ER-FM M8310 – 270 0.36 1.6 – – – 255 0.36 1.6 – – – – – – 50 0.15 1.0 M8345 – 185 0.36 1.6 – – – – – – – – – – – – – – – 0,15 1 S 30° M geometry with very positive design for medium machining. ZP 12ER-M M8330 – 280 0.36 0.6 165 0.32 0.6 265 0.36 0.6 – – – 70 0.25 0.5 – – – M8340 – 260 0.36 0.6 155 0.32 0.6 245 0.36 0.6 – – – 65 0.25 0.5 – – – M8345 – 205 0.36 0.6 120 0.32 0.6 – – – – – – 50 0.25 0.5 – – – ZP 16ER-M M8330 – 270 0.36 0.8 160 0.32 0.8 255 0.36 0.8 – – – 65 0.25 0.6 – – – M8340 – 250 0.36 0.8 150 0.32 0.8 235 0.36 0.8 – – – 60 0.25 0.6 – – – M8345 – 200 0.36 0.8 120 0.32 0.8 – – – – – – 50 0.25 0.6 – – – ZP 20ER-M M8330 – 265 0.36 1.0 155 0.32 1.0 250 0.36 1.0 – – – 65 0.25 0.8 – – – M8345 – 195 0.36 1.0 115 0.32 1.0 – – – – – – 45 0.25 0.8 – – – ZP 25ER-M M8330 – 260 0.36 1.3 155 0.32 1.3 245 0.36 1.3 – – – 65 0.25 1.0 – – – M8345 – 190 0.36 1.3 110 0.32 1.3 – – – – – – 45 0.25 1.0 – – – ZP 32ER-M M8330 – 255 0.36 1.6 150 0.32 1.6 240 0.36 1.6 – – – 60 0.25 1.3 – – – M8345 – 185 0.36 1.6 110 0.32 1.6 – – – – – – 45 0.25 1.3 – – – 7° E R geometry with sharp slightly positive design for light to medium machining. ZP 16ER-R M8345 – 190 0.45 0.8 110 0.41 0.8 – – – – – – 45 0.32 0.6 – – – ZP 20ER-R M8345 – 185 0.45 1.0 110 0.41 1.0 – – – – – – 45 0.32 0.8 – – – 570