Widia Insert Selection System Step 1 Select the insert geometry Negative Inserts feed rate (mm/rev) -ML -MR Medium Machining feed rate (in/rev) -FF

Widia Insert Selection System Step 1 Select the insert geometry Negative Inserts feed rate (mm/rev) -ML -MR Medium Machining feed rate (in/rev) -FF Finishing Step 2 Select the grade Negative Insert Geometry -FF -RH Positive Insert Geometry heavily interrupted cut C> WP15CT WP25CT WP35CT/ WP25CT WP35CT V WP35CT WP25CT/ WS25PT WP35CT WM35CT lightly interrupted cut c WP15CT WP25CT WP25CT WP35CT WP35CT WP25CT WP25CT WP25CT varying depth of cut, casting, or forging skin 0 WP15CT WP15CT WP15CT WP25CT WP25CT WP15CT WP15CT WP15CT smooth cut, pre-turned surface o WP15CT WP15CT WP15CT WP25CT WP25CT WP15CT WP15CT WP15CT Step 3 Selecting the cutting speed Low-Carbon (<0.3% C) and Free-Machining Steel speed m/min Starting Conditions 135 180 225 275 320 360 410 455 495 m/min 395 275 210 280 Widia Material Group Selection Guide To optimise speed recommendations, material subgroups have been added to each of the six workpiece material groups. material material group ISO code number of material subgroups steel P 1-6 stainless steel M 1-3 cast iron K 1-3 non-ferrous materials N 1-8 high-temp alloys S 1-4 hardened materials H 1 Widia Victory High-Performance Inserts