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Cutting Speed and Depths

Diamond Blade Performance
Factors Involving Concrete

Diamond Blade Operating Speeds
Diameter Recommended
Operating
Speed (RPM)*
Maximum
Safe
Speed (RPM)**
4" 9072 15000
4 1/2" 8063 13300
5" 7257 12000
6" 6048 10185
7" 5184 8730
8" 4536 7640
9" 4032 6790
10" 3629 6115
12" 3024 5095
12" High Speed   6300
14" 2592 4365
14" High Speed   5400
16" 2268 3820
16" High Speed

4725
18" 2016 3395
20" 1814 3055
22" 1649 2780
24" 1512 2550
26" 1396 2350
28" 1296 2185
30" 1210 2040
32" 1134 1910
36" 1008 1700
42" 864 1455
48" 756 1275

*Based on 9,500 SFPM (Surface Feet Per Minute) - the general optimum performance range for cutting concrete and masonry products, + or - 10%. For hard, dense materials such as stone and tile, the optimum performance speed is 10 - 25% less than the speeds shown above.
Blade shaft speeds (RPM's at no load) for most tools will be higher than the recommended operating speeds shown above. Under normal sawing conditions, the actual blade shaft speed of the tool will slow down under load, and should fall within the optimum speed range.

**This speed (RPM) represents the maximum safe speed (in revolutions per minute (RPM)) at which each blade can be used. Before using any blade, make sure the blade shaft (arbor) speed of the tool is within the "maximum safe" limit of that blade.

Core Drill Operating Speeds
 Diameter Minimum
 Operating
Speed (RPM)
 Recommended
Operating
Speed (RPM)
 Maximum
 Safe
Speed (RPM)
 1" 2400 3200 4000
 2"1200 1400 2000
 3" 800 1000 1300
 4" 600 900 1000
 5" 500 700 800
 6" 400 550 665
 7" 350 450 600
 8" 300 400 500
 10" 250 300 400
 12" 200 265 330
 14" 170 225 285
 16" 150 200 250
 18" 130 175 220
 20" 120 150 200
 24" 100 130 165
 30" 80 105 130

Maximum Blade Cutting Depths
Blade
Diameter
Cutting
Depth
Concrete Saw Blades
12" 3 5/8"
14" 4 5/8"
16" 5 5/8"
18" 6 5/8"
20" 7 5/8"
24" 9 5/8"
26" 10 5/8"
30" 11 5/8"
36" 14 3/4"
42" 17 3/4"
48" 20 3/4"
 
Cut-Off Saw Blades
12" 4"
14" 5"
16"
6"
 
Wall Saw Blades
18" 6 1/2"
24" 9 1/2"
30" 11 1/2
36" 14"
42" 17 3/4"
48" 20 3/4
 
Masonry Saw Blades
14" 5"
18" 7"
20" 8"
 
Tile Saw Blades
6" 1 3/4"
7" 2 1/4"
8" 2 3/4"
9" 3 1/4"
10" 3 3/4"
 
Power Hand Saw Blades
4" 1"
4 1/2" 1 1/4"
5" 1 1/2"
7" 2 1/2"
8" 3"

Note: Diamond blade cutting depths listed above are approximate. Actual cutting depth will vary with the exact blade diameter or saw type (or brand), or the exact diameter of the blade flanges. Cutting depth will also be reduced if saw components extend below the blade flanges.


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