Gear Settings for Various Thread Sizes

Threads		Stud Gear Box
Per Inch	A	B	C	D
12	40			30
13	40	65	60	30
14	40			35
16	40			40
18	40			45
19	40	50	60	57
20	40			50
22	40			55
24	40			60
26	40			65
28	20			35
32	20			40
36	20			45

Threads		Stud Gear Box

Per Inch	A	B	C	D
38	20	50	60	57
40	20			50
44	20			55
48	20			60
52	20			65
56	20	35	30	60
64	20	40	20	40
72	20	45	20	40
76	20	50	30	57
80	20	50	20	40
88	20	55	20	40
96	20	60	20	40
104	20	65	20	40

Example: To cut 12 threads per inch (see illustration below), use 40T in position A, 30T in position D, and put any other gear is position B to connect A and D.

B C

C B

Example: To cut 38 threads per inch (see illustration above), use 20T in position A, 57T in position D, 50T in position B, and 60T in position C.

SKU #33684

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33684 specifications

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Gear Settings for Various Thread Sizes

Threads

Stud Gear Box

Per Inch

33684 specifications