Cutting speeds – Tri Tool 224B Single Point User Manual
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92-0833 : Orig. 990603
Model 224B Single Point
CUTTING SPEEDS
The chart shows RPM to obtain specified tool bit surface cutting speed on the
surface of the pipe.
Use 200 surface inches per minute (508 surface centimeters per minute) for:
Stainless steels in general when no coolant is allowed, all heavy-wall tube and
some of the chrome/molybdenum steels.
Use 250 surface inches per minute (635 surface centimeters per minute) for:
Mild steels and some thin-wall stainless steels when coolants are permitted and
applied.
Use 300 surface inches per minute (762 surface centimeters per minute) for:
Aluminum and some thin-wall mild steel and tube with coolants.
RPM for
RPM for
RPM for
Pipe
True Dia
200 in / min
250 in / min
300 in/ min
Size
(508cm / min)
(635cm / min)
(762cm / min)
42"
42.00"
1067 mm
2
2
2
40"
40.00"
1016 mm
2
2
2
38"
38.00"
965 mm
2
2
3
36"
36.00"
914 mm
2
2
3
34"
34.00"
854 mm
2
2
3
32"
32.00"
813 mm
2
2
3
30"
30.00"
762 mm
2
3
3
28"
28.00"
711 mm
2
3
3
26"
26.00"
660 mm
2
3
4
24"
24.00"
610 mm
3
3
4
22"
22.00"
559 mm
3
4
4
20"
20.00"
508 mm
3
4
5
18"
18.00"
457.2 mm
4
4
5
16"
16.00"
406.4 mm
4
5
6
14"
14.00"
356.6 mm
5
6
7
12"
12.75"
324.9 mm
5
6
7
10"
10.75"
273.1 mm
6
7
9
8"
8.63"
219.1 mm
7
9
11
Cutting Speed (approximately)