42 — Ma c h i n i s t ca l c ™/ Ma c h i n i s t ca l c ™ Pr o
3. Find the recommended Cutting Tap Hole Size (Cut Tap Drill
Size) and the Thread Outside Diameter (Minimum Major
Diameter):
t
(Cut Tap Drill Size)
TAP DRILL SIZE 36
t
(Outside Diameter) OD SIZE 0.1380 INCH
* After entering the TPI value, the press of
t
is required in order to
store the entered Thread Size.
Fractional Thread Size – Model 4086
Enter a 1/2 Inch screw size and toggle through the available
common Threads per Inch (displayed in the upper-right corner of
the display) until 28 TPI is reached. Store the Thread Size and
toggle through the available Thread characteristics.
KEYSTROKE DISPLAY
OO
0.
1. Enter the Thread Size:
1/2t
SIZE
1/2 –
INCH
2. Toggle through the available common TPI values until 28 is
displayed:
t
THRED SIZE
1/2 –
12
INCH
t
THRED SIZE
1/2 –
13
INCH
t
THRED SIZE
1/2 –
14
INCH
t
THRED SIZE
1/2 –
16
INCH
t
THRED SIZE
1/2 –
18
INCH
t
THRED SIZE
1/2 –
20
INCH
t
THRED SIZE
1/2 –
24
INCH
t
THRED SIZE
1/2 –
27
INCH
t
THRED SIZE
1/2 –
28
INCH
(cont'd)
KEYSTROKE DISPLAY
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