50 — Ma c h i n i s t ca l c ™/ Ma c h i n i s t ca l c ™ Pr o
Metric Thread Size – Model 4087
Find the available Internal and External Thread characteristics
for a 5 mm, 0.75 mm Pitch screw with a Tolerance Class of 4H.
Note: The default Metric Tolerance Class is 6H (Internal). To view the
current Tolerance Class, press
gb
after entering the desired Metric
Thread Size. To change the class, press
b
again.
KEYSTROKE DISPLAY
g
*
ALL CLEArEd
1. Set Tolerance Class to Internal 4H:
4gb
(Thread Class) INT MM 4H
2. Enter the Thread Size:
5mt
SIZE 5. – MM
3. Enter the Thread Pitch and store the nal Thread Size:
0.75t
THRED SIZE 5. – 0.75 MM
4. Find the available Internal Thread characteristics:
t
(Cut Tap Drill Size)
TAP DRILL SIZE 4.25 MM
t
(Roll Tap Drill Size)
R-TAP DRILL SIZE 14
t
(Close Fit Drill Size)
CLOSE DRILL SIZE 5.3 MM
t
(Free Fit Drill Size)
FREE DRILL SIZE 5.8 MM
t
(Min. Internal Pitch Diameter)
PTCH- SIZE 4.5130 MM
t
(Max. Internal Pitch Diameter)
PTCH+ SIZE 4.5605 MM
t
(Min. Internal Minor Diameter)
MINR- SIZE 4.1880 MM
t
(Max. Internal Minor Diameter)
MINR+ SIZE 4.3060 MM
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
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