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Recommended RPM Speed for Hole Saws

Do's and Don'ts of Hole Saw Operation

  • DO Operate hole saw at recommended speed. See RPM table.
  • DO Apply sufficient pressure to cause continuous chip formation.
  • DO Set pilot drill far enough (about 1/8") beyond cutting edge of the saw to establish and maintain a solid center.
  • DO Use cutting oil or coolant to assure cleaner, cooler cuts and longer blade life.
  • DO Chuck the hole saw properly.
  • DO Hold the saw perpendicular to the surface of the material being cut.
  • DO Hold the hole saw drive unit firmly. A drill press or lathe is best when possible.
  • DO Be sure that drive pins on pin drive arbors are properly engaged.
  • DO Wear safety glasses and keep idle hands away from the sawing operation.
  • DON'T Run the hole saw too fast. Excessive speed will cause premature wear.
  • DON'T Allow the tooth tips to rub across the surface of the work. Rubbing increases heat, dulls teeth, and will work harden some materials.
  • DON'T Operate a hole saw without a pilot drill or with a pilot drill set too shallow.
  • DON'T Operate a hole saw dry (except in cast iron). Dry cuts generate more heat and decrease the life of the hole saw.
  • DON'T Chuck the hole saw too loosely or off center.
  • DON'T Try to saw holes at an angle to the work surface. If the teeth contact the work unevenly, the hole saw will twist off center and break the pilot drill or saw.
  • DON'T Allow the hole saw and drive unit to wobble or orbit around the pilot drill. This can cause the hole saw to jam or skip resulting in breakage.
  • DON'T Allow the drive pins to become loose and disengage from the hole saw cap.
  • DON'T Let loose clothing or long hair get near a revolving hole saw. 

CAUTION: Failure to operate tool correctly may result in tool breakage or bodily injury.

 

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
 

 

Bi-Metal Hole Saws
Hole Saw Diameter (in) Hole Saw Diameter (mm) Recommended RPM
Aluminum Stainless Fiberglass Ceramic Tile Cast Iron
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
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