Our recommendations for a long service life

Please adjust your number of revolutions in accordance with the following recommendations in order to optimize the tool life of your hole saw and the cutting quality. Please do not forget the permanent cooling of the hole saw during the cutting process either.

Ø NIRO Cast iron steel Non-ferrous metals ALUMINIUM
14 300 400 580 790 900
16 275 365 550 730 825
17 250 330 500 665 750
19 230 300 460 600 690
20 220 290 440 580 670
21 210 280 425 560 630
22 195 260 390 520 585
23 195 260 390 520 570
24 185 245 370 395 555
25 175 235 350 470 525
27 160 215 325 435 480
29 150 200 300 400 450
30 145 190 285 380 425
32 140 180 275 360 410
33 135 175 268 345 390
35 125 165 250 330 375
37 120 160 240 315 360
38 120 160 240 315 360
40 110 145 220 290 330
41 105 140 210 280 315
43 100 135 205 270 305
44 95 130 195 250 295
46 95 125 170 230 255
48 90 120 180 240 270
51 85 115 170 230 255
52 80 110 165 220 245
54 80 105 160 200 225
56 75 100 160 200 225
57 75 100 150 200 225
58 75 100 145 195 225
59 75 100 145 195 225
60 70 95 140 190 220
64 65 90 135 180 205
65 65 85 130 175 200
57 65 85 130 170 195
68 65 85 130 170 195
70 60 80 125 160 185
73 60 80 120 160 180
76 55 75 115 150 170
79 55 70 110 140 165
83 50 70 105 140 155
86 50 65 100 130 150
89 45 65 95 130 145
92 45 60 95 120 140
95 45 60 90 120 135
98 45 60 90 120 135
102 40 55 85 110 130
105 40 55 80 110 120
108 40 55 80 110 120
111 40 50 80 100 120
114 35 50 75 100 105
121 35 45 70 90 95
127 30 40 65 85 90
133 30 40 65 85 90
140 30 35 65 80 85
146 30 35 60 80 85
152 25 35 55 75 85
160 25 35 55 75 85
168 25 35 55 75 85
177 20 30 50 70 80
200 20 30 50 70 80
210 20 30 45 70 80