VSM11™ 0°/90° Shoulder Mills • VSM11 Best Practices ramp angle helical interpolation ramping shoulder cut DH min = Minimum blind hole diameter with helical interpolation Ø DH/DH1 DH1 max = Maximum blind hole diameter with flat bottom Modification Instructions for Use of Larger max max Radii Inserts (Shoulder Mills and Helical Mills) cutting ramp angle flat-bottom hole min diameter max to steel body diameter hole diameter (D1) RPM interference (DH1 max) (DH min) 16 41400 10.00° 32,00 19,00 20 35100 7.80° 40,00 27,00 25 30200 5.30° 50,00 37,00 32 25800 3.60° 64,00 51,00 40 22600 2.60° 80,00 67,00 50 19900 2.00° 100,00 87,00 63 17500 2.00° 126,00 113,00 80 15300 1.00° 160,00 147,00 material to remove 100 13600 0.90° 200,00 187,00 insert corner radius a b 125 12100 0.70° 250,00 237,00 2,0–3,2mm 0,2mm 1,8mm NOTE: For DH1 max, subtract the insert corner radius from the max hole diameter. NOTE: S tandard milling cutters will accept insert nose radii up to 1,6mm without modification. VSM11 Z-Axis Plunging cutting D1 diameter (D1) Z max Y 16 6,4 15,68 Maximum axial plunge depth into 18 6,4 17,23 full material 20 6,4 18,66 Vf 22 6,4 19,98 25 6,4 21,82 Z max 32 6,4 25,60 40 6,4 29,33 Tmax T max = 1,48mm 50 6,4 33,41 63 6,4 38,07 80 6,4 43,41 100 6,4 48,95 Y 125 6,4 55,10 160 6,4 62,71 widia.com 46 widia.com