Calculated Industries 4088 - Page 46

46 — Machinist calc
®
Pro 2
t
CLOSE FIT DRILL
F 0.257 INCH
t
FREE FIT DRILL
H 0.266 INCH
t
PITCH DIAMETER
MIN 0.227 INCH
t
PITCH DIAMETER
MAX 0.231 INCH
t
MINOR DIAMETER
MIN 0.211 INCH
t
MINOR DIAMETER
MAX 0.220 INCH
t
MAJOR DIAMETER
MIN 0.250 INCH
5. Switch to Thread Class 2A:
gtt (Thread Class)
U.S. EXT. THREAD
2A 2.
6. Clear the display and find the available External Thread
characteristics:
O
0.
t
THREAD SIZE
2A 0.25 -
28
INCH
t
THREAD PITCH
0.036 INCH
t
ROD SIZE
0.250 INCH
t
COLD FORM SIZE
0.224 INCH
t
PITCH DIAMETER
MAX 0.226 INCH
(cont'd)