15° D1 9 SDMT 12 IC D1 L S [mm] [mm] [mm] [mm]120512.7004.4012.705.00 RE IC = L S 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] 0,07 S 0° 25° F geometry with positive design for light to medium machining. SDMT 120508SR-F M8330 0.8 275 0.10 3.0 165 0.09 3.0 260 0.10 3.0 825 0.12 3.0 65 0.08 2.4 – – – M8340 0.8 250 0.10 3.0 150 0.09 3.0 235 0.10 3.0 – – – 60 0.08 2.4 – – – 0,1 1 S 0° 25° M geometry with positive design for light to medium machining. SDMT 120508SR-M 8215 0.8 245 0.16 3.5 145 0.14 3.5 230 0.16 3.5 – – – 60 0.11 2.8 – – – M8330 0.8 240 0.16 3.5 140 0.14 3.5 225 0.16 3.5 – – – 60 0.11 2.8 – – – M8340 0.8 220 0.16 3.5 130 0.14 3.5 205 0.16 3.5 – – – 55 0.11 2.8 – – – M9325 0.8 305 0.16 3.5 – – – 285 0.16 3.5 – – – – – – – – – 0,150,09 P 20° 9° R geometry with stable positive design for medium machining. SDMT 120508PR-R M8330 0.8 220 0.25 3.5 130 0.23 3.5 205 0.25 3.5 – – – 55 0.23 2.8 – – – M8340 0.8 195 0.25 3.5 115 0.23 3.5 185 0.25 3.5 – – – 45 0.23 2.8 – – – M9315 0.8 280 0.25 3.5 – – – 265 0.25 3.5 – – – – – – – – – M9325 0.8 265 0.25 3.5 – – – 250 0.25 3.5 – – – – – – – – – 473