25
Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
GEAR CHART FOR CUTTING IMPERIAL THREADS
T
HREADS
G
EAR
I
NDICATOR
T
ABLE
P
ER
I
NCH
A
B
C
D
TPI
SCALE
12
40
65
30
12
1,3,5,7
13
40
65
60
30
13
1
14
40
65
35
14
1,5
16
40
65
40
16
1-8
18
40
65
45
18
1,5
19
40
50
60
57
19
1
20
40
65
50
20
1,3,5,7
22
40
65
55
22
1,5
24
40
65
60
24
1-8
26
40
60
65
26
1,5
28
20
65
35
28
1,3,5,7
32
20
65
40
32
1-8
36
20
65
45
36
1,3,5,7
38
20
50
60
57
38
1,5
40
20
65
50
40
1-8
44
20
65
55
44
1,3,5,7
48
20
65
60
48
1-8
52
20
60
65
52
1,3,5,7
Examples
1-8 indicates that any of
the 8 lines may be used.
Refer to Fig A on page24
To cut 12TPI use 40T in position A
30T in position D
Use the 65 tooth gear in position B to connect A and D
Refer to Fig B on page 24
To cut 38TPI use 20T in position A
50T in position B
60T in position C
57T in position D
Summary of Contents for 7610700
Page 40: ......
