TM 9-3419-234-14&P
R. TYPE
Standard Chaser Holders
Thread
Standard
9/16" R
3/4" R
1" R
1 1/2" R
2" R
2 1/2" R
U.N.C
1/4 to 9/16'
1/4 TO 3/4
1/4 to 1
3/8 TO 1 1/2
1/2 TO 1 1/2
1/2 TO 1 1/2
N.C.,
(6 to 14 M/M)
(6 to 20 M/M)
(6 to 24 M/M)
(9 to 39 M/M)
(12 to 39 M/M)
(12 to 39 M/M)
Whit,
1 5/8 TO 2
1 5/8 TO 2 1/2
& S.I.
(40 TO 52 M/M)
(40 TO 64 M/M)
U.N.F.
1/4 to 9/16
1/4 to 7/16
'1.4 to
3/8 To 1
1/2
1/2
&
1/2 to 3/4
9/16 to 1
9/16 to 1
9/16 TO 1
9/16 to 1
N.F.
1 1/8 TO 1 1/2
1 1/8 TO 1 1/2
1 1/8 TO 1 1/2
1/4 TO 9/16
1/4 TO 3/4
1/4 TO 1/2
3/8 TO 7/8
1/2 TO 7/8
1/2 TO 7/8
B.S.F.
9/16 TO 1
1 TO 1 1/2
1 TO 1 1/2
1 TO 1 1/2
1 5/8 TO 2
1 5/8 TO 2 1/2
1/8 & 1/4
1/8 TO 3/8
1/8 TO 3/4
1/8 TO 3/4
1/4 TO 3/8
1/4 TO 3/4
PIPE
1/2 TO 3/4
1
1 TO 1 1/2
1 TO 2
1 TO 2
2 1/2
Oversize Chaser Holders
9/16"R
3/4"R
1"R
1 1/2"R
2"R
2 1/2"R
Range - Inches
5/8 to 7/8
1/1 3/6 to 1 1/4
1 1/16 to 12 1/8
2 1/16 to 3 1/8
2 9/16 to 3
1/8
M/M
16 to 22
20 to 32
28 to 56
40 to 68
56 to 80
68 to 80
Coarsest Pitch-Thds. per in.
12
10
8
7
7
7
M/M
2.0
2.5
3.0
3.5
3.5
3.5
Max. Thread Length-In.
1
1 3/8
17/16 or 2 3/16*
1 1/4 or 2*
1 7/8 or 2
1 7/8 or 2
5/8*
5/8*
M/M
25.4
33
36 or 55*
33 or 52*
47 or 67*
47 or 67
Range - Inches
7/8 to 1 1/2
1 1/4 to 2
2 1/8 to 3
2 5/8 to 3 3/4
3 1/8 to 4 1/4
3 1/8 to 4 1/4
M/M
24 to 39
33 to 52
60 to 76
72 to 95
84 to 108
84 to 108
Coarsest Pitch-Thds per in.
14
12
8
7
7
7
M/M
1.75
2.0
3.0
3.6
3.5
3.5
Max. Thread Length-In
1 1/8
1 3/16 or 2*
2 3/8*
1 1/2 or 2
2 or 2 3/4
2 or 23/4*
5/16*
M/M
28
30 or 50*
60*
38 or 59'
51 or 70'
51 or 70'
Range-Inches
1 1/2 to 2
2 to 2 3/4
Note - Oversize chaser holders are furnished against order to
M/M
40 to 52
52 to 72
thread specific diameter and pitch combination can be threaded with
a particular set of oversize chaser holders depending upon
the helix angles involved. Also, the thread must be within the
Coarsest Pitch-Thds. per In.
14
12
coarsest pitch and maximum thread length limitations of the
MM
1.75
2.0
chaser holders. Please refer complete information on
Max. Thread Length-In.
1 1/8
1 3/16 or 2*
diameter and pitch combinations for engineering review.
M/M
28
30 or 50*
*Requires Special Built-Up Chaser Holders
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