48 — Ma c h i n i s t ca l c ™ Pr o
(cont’d)
t
(Min. Internal Major Diameter)
MAJR- SIZE 5.0000 MM
5. Switch to External 4g Tolerance Class and nd the available
External Thread characteristics:
gbb
(Thread Class)
EXT MM 4G
t
THRED SIZE
$
5. – 0.75 MM
t
(Rod Size for Thread Cutting)
ROD SIZE 5.0000 MM
t
(Rod Size for Cold Forming)
CFORM SIZE 4.4520 MM
t
(Max. External Pitch Diameter)
PTCH+ SIZE 4.4910 MM
t
(Min. External Pitch Diameter)
PTCH- SIZE 4.4350 MM
t
(Max. External Major Diameter)
MAJR+ SIZE 4.9780 MM
t
(Min. External Major Diameter)
MAJR- SIZE 4.8880 MM
t
(Max. External Minor Diameter)
MINR+ SIZE 4.1660 MM
Custom Thread Percentage
The Machinist Calc Pro
KEYSTROKE DISPLAY
g
*
ALL CLEAREd
1. Enter the Thread Size and calculate the Cut Tap and Roll Tap
Drill Sizes:
1/4t
SIZE 1/4 – INCH
26t
THRED SIZE
$
1/4 –
26
INCH
t
(Cut Tap Drill Size)
TAP DRILL SIZE 3
t
* (Roll Tap Drill Size)
R-TAP DRILL SIZE 5.9 MM
KEYSTROKE DISPLAY