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Best RPM Speed for Hole Saws

Best RPM Speed for Using Carbide-tipped Hole Saws
Hole Saw Diameter (in) Hole Saw Diameter (mm) Recommended RPM
Aluminum Stainless Fiberglass Ceramic Tile Cast Iron
11/16 17.5 1800 690 270 550 240
3/4 19.1 1700 640 250 500 210
7/8 22.2 1500 550 210 430 180
1 25.4 1300 480 190 370 150
1-1/8 28.6 1100 420 170 330 140
1-1/4 31.8 1000 380 160 300 130
1-3/8 34.9 900 350 140 270 110
1-1/2 38.1 900 320 120 250 100
1-5/8 41.3 700 290 110 230 90
1-3/4 44.5 700 270 110 210 90
2 50.8 600 240 90 190 80
2-1/8 54 600 220 90 180 70
2-1/4 57.2 600 210 80 170 70
2-3/8 60.3 600 200 80 160 70
2-1/2 63.5 500 190 70 150 60
2-9/16 65.1 500 190 70 140 60
2-5/8 66.7 500 180 70 130 60
2-11/16 68.3 500 180 60 120 60
3 76.2 400 160 60 120 50
3-1/4 82.6 400 150 60 110 50
3-3/8 85.7 400 140 60 110 50
3-1/2 88.9 400 140 50 110 50
3-5/8 92.1 400 130 50 100 40
3-3/4 95.3 300 130 50 100 40
4 101.6 300 120 50 100 40
4-1/8 104.8 300 120 50 90 40
4-1/4 108 300 110 50 90 40
4-1/2 114.3 300 110 40 80 30
4-3/4 127 300 100 40 80 30
5 120.7 200 100 40 80 30
5-1/2 139.7 200 100 40 70 30
6 152.4 100 80 30 60 30







Best Cutting Speed for Using Bi-metal Hole Saws
9/16 14.3 580 300 400 790 900
5/8 15.9 550 275 365 730 825
11/16 17.5 500 250 330 665 750
3/4 19.1 460 230 300 600 690
25/32 19.8 425 210 280 560 630
13/16 20.6 425 210 280 560 630
7/8 22.2 390 195 260 520 585
15/16 23.8 370 185 245 495 555
1 25.4 350 175 235 470 525
1-1/16 27 325 160 215 435 480
1-1/8 28.6 300 150 200 400 450
1-3/16 30.2 285 145 190 380 425
1-1/4 31.8 275 140 180 360 410
1-5/16 33.3 260 135 175 345 390
1-3/8 34.9 250 125 165 330 375
1-7/16 36.5 240 120 160 315 360
1-1/2 38.1 230 115 150 300 345
1-9/16 39.7 220 110 145 290 330
1-5/8 41.3 210 105 140 280 315
1-11/16 42.9 205 100 135 270 305
1-3/4 44.5 195 95 130 250 295
1-13/16 46 190 95 125 250 285
1-7/8 47.6 180 90 120 240 270
2 50.8 170 85 115 230 255
2-1/16 52.4 165 80 110 220 245
2-1/8 54 160 80 105 210 240
2-1/4 57.2 150 75 100 200 225
2-3/8 60.3 140 70 95 190 220
2-1/2 63.5 135 65 90 180 205
2-9/16 65.1 130 65 85 175 200
2-5/8 66.7 130 65 85 170 195
2-11/16 68.3 125 60 80 160 185
2-3/4 69.9 125 60 80 160 185
2-7/8 73 120 60 80 160 180
3 76.2 115 55 75 150 170
3-1/8 79.4 110 55 70 140 165
3-1/4 82.6 105 50 70 140 155
3-3/8 85.7 100 50 65 130 150
3-1/2 88.9 95 45 65 130 145
3-5/8 92.1 95 45 60 120 140
3-3/4 95.3 90 45 60 120 135
3-7/8 98.4 85 40 55 110 130
4 101.6 85 40 55 110 130
4-1/8 104.8 80 40 55 110 120
4-1/4 108 80 40 55 110 120
4-3/8 111.1 75 35 50 100 105
4-1/2 114.3 75 35 50 100 105
4-5/8 117.5 75 35 50 100 105
4-3/4 120.7 70 35 45 90 95
5 127 70 35 45 90 95
5-1/2 139.7 65 30 40 85 90
6 152.4 65 30 40 85 90