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Other Kinds of Tools
(Rethreading Die ( Hexagon , Carbon Steel) )



Fractional & Machine Screw Size
INCH System
Thread Specification inch Teeth Per inch
2 56
4 40
48
5 40
55
6 32
40
8 32
36
10 24
32
1/4 20
28
5/16 18
24
3/8 16
24
7/16 14
20
1/2 13
20
9/16 12
18



Metric System
Thread Specification mm Teeth Per p
3 0.50
0.60
4 0.70
0.75
5 0.80
0.90
6 1.00
6.3
7
8
1.25
9 1.00
1.25
10
1.50
11
12 1.25
1.50
1.75
14 1.50
2.00



These Dies are used in repair worl for dressing over bruised or rusty threads. The Hexagon shape enables use with anyopen end . box, or adjustable wrench.




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