User`s guide
Us e r 's GU i d e  — 31
2. Enter the Number of Teeth:
4#
TEETH   4.
3. Calculate the Feed per Tooth:
F
FPT 0.0060 INCH
F
TEETH   4.
F
CUT   0.024 INCH/REV
Feed per Tooth – Based on Feed Rate, RPM and # of Teeth 
Calculate Feed per Tooth (Chip Load) with a 12.8 Inch per 
minute Feed Rate, 4 Teeth and a Spindle Speed of 800 RPM:
KEYSTROKE DISPLAY
OO
0.
1. Enter the Feed Rate:
12.8f
FEED   12.8 INCH/MIN
2. Enter the Number of Teeth:
4#
TEETH   4.
3. Enter the Spindle Speed (RPM):
800R
RPM   800.
4. Calculate the Feed per Tooth:
F
* FPT 0.0040 INCH  
* Repeated presses of 
F
 will toggle through the inputs and outputs, 
starting with the entered Number of Teeth.
cuTTINg FEED
Cutting Feed is the distance the cutting tool or workpiece 
advances during one revolution of the spindle, typically measured 
in inches per revolution (IPR). You can calculate Cutting Feed 
given values for Feed per Tooth (Chip Load) and Number of Teeth. 
If these values are unknown, you can calculate Cutting Feed with 
Feed Rate and RPM (Spindle Speed). 
KEYSTROKE DISPLAY
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