TurningMillingDrillingTechnicalInformationIndex Recommended cutting data Solid carbide drills A Starting values for cutting speed vc [m/min] SL-Drill SL-Drill SP-Drill ST-Drill SH-Drill SC-Drill PA-Drill PC-Drill PC-Drill SC-Drill 12-15xD 20-30xD 3xD 3-5xD 3xD 3 -5xD 3xD 3-5xD 15xD Centering drill KDG 303 KDG 303 KDG 303 KDG 303 KDG 303 YK20F YK 30F YK20F YK20F KDG 303 Int. f-group Int. f-group Int. f-group Int. f-group Ext. f-group Ext. f-group Ext. f-group Ext. f-group Int. f-group Ext. f-group 130 7 95 7 165 8 150 8 135 8 110 7 80 7 145 8 130 8 120 8 100 5 70 5 135 6 120 6 110 6 85 5 60 5 125 6 110 6 100 6 75 5 55 5 110 6 100 6 90 6 110 7 80 7 145 8 130 885560512561106 120 81006 B 75 5 55 5 110 6 100 6 90 6 65 5 50 5 100 6 90 6 85 6 100 7 70 7 135 8 120 8 110 8 75 5 55 5 110 6 100 6 90 6 60 4 55 4 90 5 80 5 75 5 35 4 30 4 65 5 55 5 50 5 40 4 35 4 70 5 60 5 55 5 35 4 35 4 55 5 50 5 45 5 125 7 90 7 150 8 120 8 100 7 120 8 100 7 70 7 125 8 100 8 80 7 100 8 110 7 80 7 135 8 100 8 80 7 100 8 70 7 50 7 90 8 80 8 65 7 80 8 C 120 7 85 7 145 8 120 8 100 7 120 8 70 7 50 7 90 8 90 8 75 7 90 8 150 8 105 8 170 8 180 9 180 9 180 9 150 8 105 8 170 8 180 9 180 9 180 9 150 8 105 8 170 8 130 9 130 9 130 9 150 8 105 8 170 8 130 9 130 9 130 9 150 8 105 8 170 8 120 9 120 9 120 9 150 8 105 8 170 8 130 9 130 9 130 9 150 8 105 8 170 8 130 9 130 9 130 9 150 8 105 8 170 8 130 9 130 9 130 9 30 4 20 4 30 5 30 5 35 4 25 4 35 5 35 5354254355355 D 15 4 10 4 15 5 15 5 15 4 10 4 15 5 15 5 30 4 20 4 30 5 30 5 30 4 20 4 30 5 30 5 25 2 20 1 50 3 25 2 E C125