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(cont'd)
KeySTROKe
2. Enter the RPM:
7 5 0 R
3. Calculate the Cutting Speed:
*
C
* Repeated presses of
starting with the entered Diameter.
Cutting Speed – Using Metric Mode
If you know you're going to be making your calculations in
metric units, you can easily set your calculator to Metric Mode
prior to entering values.
Calculate the Cutting Speed when using a #1 drill at 750 RPM
(Spindle Speed):
KeySTROKe
O O
1. Set calculator to Metric Mode:
gS S S +
2. Enter the Drill Size:
1 D
3. Store as the Diameter:
= d
4. Enter the RPM:
7 5 0 R
5. Calculate the Cutting Speed:
*
C
6. Return calculator to U.S. Mode:
g SS S +
32 — M
achinist
will toggle through the inputs and outputs,
C
c
P
alc™
ro
RPM
CUT 81.
MeTRC UnITS
1
$
DRILL SIZe
DIA
$
RPM
CUT 14.
DISPLAy
750.
$
feeT/MIN
DISPLAy
0.
5.7912
MM
5.7912
MM
$
750.
M/MIN
US UnITS
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