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Annular Cutter Speed Recommendations

Cutter
Diameter		 High Tensile
Steel		 Mild
Steel
INCH RPM RPM
7/16 262 698
1/2 229 611
9/16 204 543
5/8 183 489
11/16 167 444
3/4 153 407
13/16 141 376
7/8 131 349
15/16 122 326
1 115 306
1.1/16 108 288
1.1/8 102 272
1.3/16 96 257
1.1/4 92 244
1.5/16 87 233
1.3/8 83 222
1.7/16 80 213
1.1/2 76 204
1.9/16 73 196
1.5/8 71 188
1.11/16 68 181
1.3/4 65 175
1.13/16 63 169
1.7/8 61 163
1.15/16 59 158
2 57 153
2.1/16 56 148
2.1/8 54 144
2.3/16 52 140
2.1/4 51 136
2.5/16 50 132
2.3/8 48 129
2.7/16 47 125
2.1/2 46 122
2.9/16 45 119
2.5/8 44 116
2.11/16 43 114
2.3/4 42 111
2.13/16 41 109
2.7/8 40 106
2.15/16 39 104
3 38 102
3.1/16 37 100
3.1/8 37 98
3.3/16 36 96
3.1/4 35 94
3.5/16 35 92
3.3/8 34 91
3.7/16 33 89
3.1/2 33 87
3.9/16 32 86
3.5/8 32 84
3.11/16 31 83
3.3/4 31 81
3.13/16 30 80
3.7/8 30 79
3.15/16 29 78
4 29 76
 
Cutter
Diameter		 High Tensile
Steel		 Mild
Steel
MM RPM RPM
12 239 637
14 205 546
16 179 477
18 159 424
20 143 382
22 130 347
24 119 318
26 110 294
28 102 273
30 95 255
32 90 239
34 84 225
36 80 212
38 75 201
40 72 191
42 68 182
44 65 174
46 62 166
48 60 159
50 57 153
52 55 147
54 53 141
56 51 136
58 49 132
60 48 127
62 46 123
64 45 119
66 43 116
68 42 112
70 41 109
72 40 106
74 39 103
76 38 101
78 37 98
80 36 95
82 35 93
84 34 91
86 33 89
88 33 87
90 32 85
92 31 83
94 30 81
96 30 80
98 29 78
100 29 76