User`s guide
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)










