Us e r 's GU i d e — 27
* Repeated presses of
C
will toggle through the inputs and outputs,
starting with the entered Diameter.
Cutting Speed - Drilling
Calculate the Cutting Speed using a 10.5 mm drill bit with the
Spindle Speed set to 750 RPM:
KEYSTROKE DISPLAY
OO
0.
1. Enter the Diameter of the hole to be drilled:
10.5md
DIA 10.5 MM
2. Enter the RPM:
750R
RPM 750.
3. Calculate the Cutting Speed:
C
* CUT 81. FEET/MIN
* Repeated presses of
C
will toggle through the inputs and outputs,
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 DISPLAY
OO
0.
1. Set calculator to Metric Mode:
gSSS+
METRC UnITS
2. Enter the Drill Size:
1D
1 DRILL SIZE 0.2280 INCH
(cont'd)
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