User`s guide
Us e r 's GU i d e  — 11
(cont'd)
D
Drill Size
 —
Enters a numeric, letter, fractional 
or metric Drill Size, displaying the decimal Inch 
equivalent of the Drill Size. The next smaller Drill Size 
is displayed if the entered value doesn’t match a Drill 
Size. Repeated presses of 
D
 or 
+
 toggle through 
Drill Sizes in increasing order. Presses of 
-
 toggle 
through Drill Sizes in decreasing order. Selected Drill 
Size is stored upon exiting function.
gD
Model 4087 
only
Drill Point 
— Enters the Cutting Angle of a Drill 
Point. Calculates the Drill Point Cut Depth that needs 
to be taken into account when it’s necessary to 
maintain a specic full diameter depth.
#
Number of Teeth
 —
Enters the Number of Teeth on 
a tool. Default value is 1.
F
Feed per Tooth
 — Enters or calculates Feed per 
Tooth (Chip Load). Unitless entries assumed Inches 
in U.S. mode; millimeters in Metric mode. Calculates 
Feed per Tooth given entered Cutting Feed and 
Number of Teeth or RPM (Spindle Speed), Feed 
Rate and Number of Teeth. If all of these values are 
entered, the calculation based on Cutting Feed and 
Number of Teeth takes precedence.
c
Cutting Feed
 — Enters or calculates Cutting Feed. 
Unitless entries assumed inches per revolution in 
U.S. mode; millimeters per revolution in Metric mode. 
Calculates Cutting Feed given entered Feed per 
Tooth (Chip Load) and Number of Teeth or Feed Rate 
and RPM (Spindle Speed). If all of these values are 
entered, the calculation based on Feed per Tooth and 
Number of Teeth takes precedence.
d
Diameter
 — Enters a Diameter and calculates circle 
Area and Circumference given entered Diameter. 
On Model 4087, calculates Diameter given entered 
Radius.










