Calculate Cutting Speed Calculating RPM… Model number of BDS magnetic drilling machine? Other Brand MABasic 400 MABasic 450 MABasic 850 MABasic 50 MABasic 50R MAB 455 MAB 455 SB MAB 465 MAB 815 MAB 485 MAB 485 SB MAB 525 MAB 525 SB MAB 825 MAB 845 MAB 1300 MAB 1300D200 PipeMAB 525 PipeMAB 825 MAB 825KTS AutoMAB 450 MAB 825V MAB 845V MAB 1300V RailMAB 915 Type of the material to be drilled? Fine Grain Steel ≤ 500 Fine Grain Steel ≤ 700 Fine Grain Steel ≤ 1000 Inox Casting Aluminium Stainless Steel Steel Hardox Type of the annular cutter? HSS Standard HSS 8% Cobalt HSS VariPLUS Coated TCT Standard TCT VarioPLUS Coated TCT Rail Diameter of the annular cutter? in Millimeters in Inches 12 mm 13 mm 14 mm 15 mm 16 mm 17 mm 18 mm 19 mm 20 mm 21 mm 22 mm 23 mm 24 mm 25 mm 26 mm 27 mm 28 mm 29 mm 30 mm 31 mm 32 mm 33 mm 34 mm 35 mm 36 mm 37 mm 38 mm 39 mm 40 mm 41 mm 42 mm 43 mm 44 mm 45 mm 46 mm 47 mm 48 mm 49 mm 50 mm 51 mm 52 mm 53 mm 54 mm 55 mm 56 mm 57 mm 58 mm 59 mm 60 mm 61 mm 62 mm 63 mm 64 mm 65 mm 66 mm 67 mm 68 mm 69 mm 70 mm 71 mm 72 mm 73 mm 74 mm 75 mm 76 mm 77 mm 78 mm 79 mm 80 mm 81 mm 82 mm 83 mm 84 mm 85 mm 86 mm 87 mm 88 mm 89 mm 90 mm 91 mm 92 mm 93 mm 94 mm 95 mm 96 mm 97 mm 98 mm 99 mm 100 mm 101 mm 102 mm 103 mm 104 mm 105 mm 106 mm 107 mm 108 mm 109 mm 110 mm 111 mm 112 mm 113 mm 114 mm 115 mm 116 mm 117 mm 118 mm 119 mm 120 mm 121 mm 122 mm 123 mm 124 mm 125 mm 126 mm 127 mm 128 mm 129 mm 130 mm 131 mm 132 mm 133 mm 134 mm 135 mm 136 mm 137 mm 138 mm 139 mm 140 mm 141 mm 142 mm 143 mm 144 mm 145 mm 146 mm 147 mm 148 mm 149 mm 150 mm 151 mm 152 mm 153 mm 154 mm 155 mm 156 mm 157 mm 158 mm 159 mm 160 mm 161 mm 162 mm 163 mm 164 mm 165 mm 166 mm 167 mm 168 mm 169 mm 170 mm 171 mm 172 mm 173 mm 174 mm 175 mm 176 mm 177 mm 178 mm 179 mm 180 mm 181 mm 182 mm 183 mm 184 mm 185 mm 186 mm 187 mm 188 mm 189 mm 190 mm 191 mm 192 mm 193 mm 194 mm 195 mm 196 mm 197 mm 198 mm 199 mm 200 mm 1/2" 9/16" 5/8" 11/16" 3/4" 13/16" 7/8" 15/16" 1" 1-1/16" 1-1/8" 1-3/16" 1-1/4" 1-5/16" 1-3/8" 1-7/16" 1-1/2" 1-9/16" 1-5/8" 1-11/16" 1-3/4" 1-13/16" 1-7/8" 1-15/16" 2" 2-1/16" 2-1/8" 2-3/16" 2-1/4" 2-5/16" 2-3/8" 2-7/16" 2-1/2" 2-9/16" 2-5/8" 2-11/16" 2-3/4" 2-13/16" 2-7/8" 2-15/16" 3" 3-1/16" 3-1/8" 3-3/16" 3-1/4" 3-5/16" 3-3/8" 3-7/16" 3-1/2" 3-9/16" 3-5/8" 3-11/16" 3-3/4" 3-13/16" 3-7/8" 3-15/16" 4" 4-1/16" 4-1/8" 4-3/16" 4-1/4" 4-5/16" 4-3/8" 4-7/16" 4-1/2" 4-9/16" 4-5/8" 4-11/16" 4-3/4" 4-13/16" 4-7/8" 4-15/16" 5" 5-1/16" 5-1/8" Calculate The required speed for your machine 0 min⁻¹ Set your BDS machine at gear 0