Fractional Thread Size - Model 4087 - Calculated Industries Machinist Calc 4086 User Manual

KeYSTROKe
3. Enter the TPI and store the final Thread Size:
32t
4. Find the available Internal Thread characteristics:
(Cut Tap Drill Size)
t
(Roll Tap Drill Size)
t
(Close Fit Drill Size)
t
(Free Fit Drill Size)
t
(Min. Internal Pitch Diameter)
t
(Max. Internal Pitch Diameter)
t
(Min. Internal Minor Diameter)
t
(Max. Internal Minor Diameter)
t
(Min. Internal Major Diameter)
t
5. Switch to Thread Class 2A and find the available External
Thread characteristics:
gbb
t
(Rod Size for thread cutting)
t
(Rod Size for cold forming)
t
(Max. External Pitch Diameter)
t
(Min. External Pitch Diameter)
t
(Max. External Major Diameter)
t
(Min. External Major Diameter)
t
(Max. External Minor Diameter)
t
fractional Thread Size – Model 4087
Find the available Internal and External Thread characteristics
for a 1/4 Inch, 28 TPI screw.
48 — M
achinist
(Thread Class)
c / M
alc™ achinist
THReD
TAP
R-TAP
DRILL SIZe
CLOSe
fRee
PTCH-
SIZe
PTCH+
SIZe
MINR-
SIZe
MINR+
SIZe
MAJR-
SIZe
THReD
ROD
SIZe
CfORM
PTCH+
PTCH-
MAJR+
MAJR-
MINR+
c P
alc™ ro
DISPLAY
8 – 32
SIZe
29
DRILL SIZe
3.75
MM
18
DRILL SIZe
16
DRILL SIZe
0.1437
INCH
0.1475
INCH
0.1300
INCH
0.1390
INCH
0.1640
INCH
eXT 2A
8 – 32
SIZe
0.1640
INCH
0.1450
SIZe INCH
0.1428
SIZe INCH
0.1399
SIZe INCH
0.1631
SIZe INCH
0.1571
SIZe INCH
0.1259
SIZe INCH