Indexable Milling I Solid End Milling I Holemaking I Turning 0°/90° Shoulder Mills • VSM17™ Best Practices ramp angle helical ramping interpolation 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 Radii Inserts (Shoulder Mills and Helical Mills) max max cutting ramp angle flat-bottom hole min diameter max to steel body diameter hole diameter (D1) RPM interference (DH1 max) (DH min) 25 41800 8,8° 50 32 32 34700 5,7° 64 46 40 29800 4,0° 80 62 50 25800 3,0° 100 82 63 22400 2,1° 126 108 80 19500 1,6° 160 142 insert material to removecorner 100 17200 1,2° 200 182 radius a b 125 15200 0,9° 150 132 2,4–4,0mm 2 3 160 13300 0,7° 320 302 4,0–6,0mm 4 5 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. VSM17 Z-Axis Plunging D1 cutting diameter (D1) Z max Y Vf Maximum 25 9 24,00 axial plunge depth 32 9 28,77 into full material 40 9 33,41 50 9 38,42 Zmax 63 9 44,09 Tmax 80 9 50,56 Tmax = 2,73mm 100 9 57,24 Y 125 9 64,62 160 9 73,73 widia.com 57 widia.com