Calculated Industries 4087 User Manual - 40 — M
40 — M
achinist
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alc™
P
ro
DrIll POINT
The Drill Point function calculates the Drill Point Cut Depth
(length) of the stored Drill Size. By default, the calculation is
based on a Cutting Angle of 118°. If a different Angle is desired,
it can be stored using the Drill Point function (for example,
1 2 0 g D
stores 120°).
Find the Drill Point Cut Depth for a 1/2" drill with a 118° Cutting
Angle. Then, find the Cut Depth using a 127° Angle.
KeySTROKe
DISPLAy
O O
0.
1. Enter the Drill Size:
1 / 2 D
1/2
DRILL SIZe
$
0.5000
INCH
2. Enter 118° Angle and calculate the Drill Point Cut Depth:
1 1 8 g D
(Drill Point)
DePTH
DRILL
.
0.1502
INCH
D
ANGLe
DRILL
$
118.°
D
1/2
DRILL SIZe
$
0.5000
INCH
3. Enter 127° angle and calculate the Drill Point cut length:
1 2 7 g D
(Drill Point)
DePTH
DRILL
$
0.1246
INCH
THrEaD SIzINg
The
t
key allows you to enter a numeric, fractional or metric
Thread Size and then toggle through the various available
Thread characteristics, as shown in the tables provided later in
this section.
When using the
t
key, the first entry is considered the
Thread Size. Upon entering the Thread Size, the Threads
per Inch (TPI) or Pitch is required. If the entered Thread Size
is a standard size, continuous presses of the
t
key will
toggle through the available common TPI or Pitches. Once the
desired TPI/Pitch is reached, pressing
O
stores the Thread