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"C" series (and similiar shape) Collets
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mostly Hardinge collet dimensions
Collet |
A |
B |
C
Ext Thread |
D
Int Thread** |
e
deg. |
Hex
Capacity |
Round
Capacity |
Square
Capacity |
Price and
Availability |
1C |
0.335" |
1.438" |
0.322 x 40 RH |
? |
? |
7/32" |
1/4" |
11/64" |
~ |
2C |
0.450" |
1.812" |
0.442 x 30 RH |
? |
? |
19/64" |
11/32" |
15/64" |
~ |
3C |
0.650" |
2.688"* |
0.640 x 26 RH |
? |
? |
7/16" |
1/2" |
11/32" |
Click |
4C |
0.950" |
3.000" |
0.938 x 20 RH |
? |
11 |
21/32" |
3/4" |
17/32" |
Click |
5C |
1.250" |
3.281" |
1.238 x 20 RH |
1.042 x 24 RH |
? |
29/32" |
1-1/16" |
3/4" |
Click |
6C |
? |
? |
? |
? |
? |
? |
? |
? |
~ |
16C |
1.889" |
4.312" |
M47.5 x 1.75 RH |
1.688 x 20 |
? |
? |
? |
? |
~ |
20C |
2.378" |
6.250" |
M60 x 1.5 RH |
? |
? |
1-3/4" |
2" |
1-27/64" |
~ |
25C |
2.930" |
6.480" |
M73x1.5 RH |
? |
? |
2.216" |
2.559" |
1.808" |
~ |
|
|
|
|
|
|
|
|
|
|
1A |
0.650" |
2.563" |
0.640 x 26 RH |
? |
? |
7/16" |
1/2" |
11/32" |
~ |
2A |
0.860" |
3.313" |
0.850 x 20 RH |
? |
? |
19/32" |
11/16" |
15/32" |
~ |
|
|
|
|
|
|
|
|
|
|
1AM |
1.125" |
3.906" |
1.118 x 24 RH |
? |
? |
7/8" |
1" |
23/32" |
~ |
2AM |
0.629" |
3.188" |
0.622 x 24 RH |
? |
? |
7/16" |
1/2" |
11/32" |
~ |
3AM |
0.750" |
3.188" |
0.742 x 24 RH |
? |
? |
17/32" |
5/8" |
7/16" |
~ |
|
|
|
|
|
|
|
|
|
|
3AT |
0.687" |
2.313" |
0.637 x 26 RH |
? |
? |
7/16" |
1/2" |
11/32" |
~ |
|
|
|
|
|
|
|
|
|
|
115 Cushman |
1.344" |
3.500" |
1.307 x 20 LH |
? |
? |
31/32" |
1-1/8" |
51/64" |
~ |
215 Cushman |
2.030" |
4.750" |
1.990 x 18 LH |
? |
? |
1-1/2" |
1-3/4" |
1-7/32" |
~ |
315 Cushman |
3.687" |
5.500" |
3.622 x 16 LH |
? |
? |
2-13/16" |
3-1/4" |
2-1/4" |
~ |
415 Cushman |
? |
? |
? |
? |
? |
? |
? |
? |
~ |
|
|
|
|
|
|
|
|
|
|
4E*** |
0.59" |
2.1" |
0.585 x ? RH |
? |
? |
?" |
?" |
?" |
Click |
|
|
|
|
|
|
|
|
|
|
2H |
0.826" |
4.250" |
0.799 x 20 RH |
? |
? |
17/32" |
5/8" |
7/16" |
~ |
3H |
1.125" |
4.438" |
1.050 x 20 RH |
? |
? |
3/4" |
7/8" |
5/8" |
~ |
6H |
1.375" |
4.750" |
1.300 x 20 RH |
? |
? |
31/32" |
1-1/8" |
51/64" |
Click |
8H |
1.500" |
4.750" |
1.425 x 20 RH |
? |
? |
1-1/16" |
1-1/4" |
7/8" |
~ |
|
|
|
|
|
|
|
|
|
|
1J |
1.250" |
3.000" |
1.238 x 20 RH |
? |
? |
7/8" |
1-1/16" |
3/4" |
Click |
2J |
1.625" |
3.250" |
1.611 x 18 RH |
? |
? |
1-3/16" |
1-3/8" |
1" |
Click |
3J |
2.000" |
3.750" |
1.988 x 20 RH |
? |
? |
1-1/2" |
1-3/4" |
1-1/4" |
Click |
22J |
2.562" |
4.000" |
2.550 x 18 RH |
? |
? |
1-15/16" |
2-1/4" |
1-9/16" |
~ |
35J |
3.875" |
5.000" |
3.861 x 18 RH |
? |
? |
3" |
3-1/2" |
2-7/16" |
~ |
|
|
|
|
|
|
|
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|
|
6K |
0.842" |
3.000" |
0.762 x 26 RH |
? |
? |
17/32" |
5/8" |
7/16" |
~ |
|
|
|
|
|
|
|
|
|
|
2L Leblond |
0.950" |
3.000" |
0.938 x 20 RH |
? |
? |
21/32" |
3/4" |
17/32" |
~ |
6L Leblond |
1.250" |
4.438" |
1.178 x 20 RH |
? |
? |
7/8" |
1" |
23/32" |
Click |
10L Leblond |
1.562" |
5.500" |
1.490 x 18 RH |
? |
? |
1-1/16" |
1-1/4" |
7/8" |
~ |
|
|
|
|
|
|
|
|
|
|
2NS |
? |
? |
? |
? |
? |
? |
? |
? |
~ |
3NS |
0.687" |
2.875" |
0.647 x 20 RH |
? |
? |
7/16" |
1/2" |
11/32" |
~ |
4NS |
0.826" |
3.500" |
0.800 x 20 RH |
? |
? |
17/32" |
5/8" |
7/16" |
~ |
5NS |
1.062" |
4.219" |
1.050 x 20 RH |
? |
? |
3/4" |
7/8" |
5/8" |
~ |
6NS |
? |
? |
? |
? |
? |
? |
? |
? |
~ |
|
|
|
|
|
|
|
|
|
|
2OS |
? |
? |
? |
? |
? |
? |
? |
? |
~ |
3OS |
0.589" |
2.094" |
0.518 x 26 RH |
? |
? |
5/16" |
3/8" |
17/64" |
~ |
4OS |
0.750" |
2.781" |
0.660 x 20 RH |
? |
? |
7/16" |
1/2" |
11/32" |
~ |
|
|
|
|
|
|
|
|
|
|
7P P&W |
1.125" |
4.750" |
1.120 x 20 RH |
? |
? |
3/4" |
7/8" |
5/8" |
~ |
3PN P&W |
.650" |
2.063" |
0.645 x 24 RH |
? |
? |
7/16" |
1/2" |
11/32" |
~ |
5PN P&W |
1.312" |
3.406" |
1.307 x 16 RH |
? |
? |
7/8" |
1" |
23/32" |
~ |
3PO P&W |
.599" |
2.063" |
0.500 x 24 RH |
? |
? |
5/16" |
3/8" |
17/64" |
~ |
|
|
|
|
|
|
|
|
|
|
1R |
? |
? |
? |
? |
? |
? |
? |
? |
~ |
2R |
? |
? |
? |
? |
? |
? |
? |
? |
~ |
6R |
1.375" |
4.938" |
1.300 x 20 RH |
? |
? |
31/32" |
1-1/8" |
25/32" |
~ |
|
|
|
|
|
|
|
|
|
|
2S |
0.750" |
3.234" |
0.745 x 18 RH |
? |
? |
31/64" |
9/16" |
25/64" |
~ |
3S |
1.000" |
4.594" |
0.995 x 20 RH |
? |
? |
21/32" |
3/4" |
17/32" |
~ |
4S |
0.998" |
3.250" |
0.982 x 20 RH |
? |
? |
21/32" |
3/4" |
17/32" |
~ |
32S |
0.703" |
2.563" |
0.690 x 24 RH |
? |
? |
7/16" |
1/2" |
11/32" |
~ |
|
|
|
|
|
|
|
|
|
|
3SC |
0.350" |
1.587" |
0.293 x 36 RH |
? |
? |
5/32" |
3/16" |
1/8" |
~ |
5SC |
0.600" |
2.438" |
0.500 x 26 RH |
? |
? |
21/64" |
3/8" |
17/64" |
~ |
52SC |
0.800" |
3.688" |
0.795 x 20 RH |
? |
? |
17/32" |
5/8" |
7/16" |
~ |
|
|
|
|
|
|
|
|
|
|
3SS |
0.589" |
2.125" |
0.515 x 26 RH |
? |
? |
5/16" |
3/8" |
17/64" |
~ |
|
|
|
|
|
|
|
|
|
|
5ST |
1.250" |
3.281" |
1.238 x 20 RH |
? |
? |
29/32" |
1-1/16" |
3/4" |
~ |
8ST |
2.375" |
5.906" |
2.354 x 12 RH |
? |
? |
1-27/32" |
2-1/8" |
1-1/2" |
~ |
|
|
|
|
|
|
|
|
|
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5V |
0.850" |
3.875" |
0.775 x 18 RH |
? |
? |
31/64" |
9/16" |
25/64" |
~ |
|
|
|
|
|
|
|
|
|
|
8WN |
1.250" |
3.875" |
1.245 x 16 RH |
? |
? |
7/8" |
1" |
23/32" |
~ |
|
|
|
|
|
|
|
|
|
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S&M 0201 |
24mm
0.945" |
61mm
2.402" |
24 x 1 RH |
~ |
30 |
9/16" |
5/8" |
1/2" |
~ |
S&M CD25 |
34mm
1.339" |
87.5mm
3.445" |
34 x 1 RH |
~ |
10 |
3/4" |
1" |
11/16" |
~ |
S&M SD255-36 |
40mm
1.575" |
71.5mm
2.815" |
36 x 1 RH |
~ |
30 |
7/8" |
1-1/16" |
3/4" |
~ |
S&M T200 |
34mm
1.339" |
150mm
5.906" |
32 x 1.5 RH |
~ |
20.5 |
13/16" |
1" |
11/16" |
Click |
S&M TD10 |
16mm
0.630" |
60mm
2.362" |
14 x 1 RH |
~ |
16 |
5/16" |
13/32" |
9/32" |
~ |
S&M TD10TXP |
16mm
0.630" |
59mm
2.323" |
16 x 1 RH |
~ |
16 |
5/16" |
0.406" |
9/32" |
~ |
S&M TD18TXP |
18mm
0.708" |
100mm
3.937" |
18 x 1 RH |
~ |
20 |
7/16" |
1/2" |
11/32" |
~ |
S&M TD25/167 |
28mm
1.102" |
81mm
3.188" |
25 x 1 RH |
~ |
30 |
11/16" |
3/4" |
9/16" |
~ |
S&M TD32S |
42mm
1.654" |
82mm
3.228" |
40 x 1 RH |
~ |
16 |
1-1/16" |
1-1/4" |
7/8" |
~ |
* = I have seen several 3C collets that measure 2.5" instead of 2.688"
** = Some Manufacturers and/or models do not have internal threads.
*** = These are my quick caliper measurements on the one 4E collet I have seen.
The threads on this collet are "saw tooth" shape (perpendicular face on the uphill side) vs the standard "triangle".
Some machines that use these collets
 1A
Arrow, Barker, South Bend
2A
South Bend
1AM
Ames, Cincinnati, Oliver Ace
2AM & 3AM
Ames
3AT
Arrow, Atlas, Logan
3C
Arrow, Barker, Burke, Clausing, Crystal Lake, Dalton, Dykrex, Elgin, Ellis, Flather, Index, LeBlond,
Logan, Mead, Schauer, South Bend
4C
All Tool, Carroll, Crystal Lake, Dalton, Elgin, Hamilton, LeBlond, L-W, Rouse, Sheldon, South Bend,
Whitcomb-Blaisdel
5C
All Tool, Arrow, Arter, Carroll & Jamieson, Carroll, Clausing, Colborne, Crystal Lake, Dandy, Delta, Dykrex,
Elgin, Glenbard, Hancock, Hardinge, Lee, Logan, Master, Mead, Monarch, Oliver Ace, Porter-Cable, Rivett,
Rocheleau, Schauer, Sebastian, Seneca Falls, Sheldon, Sjogren, South Bend, Unimatic, Wade
16C, 20C, 25C
Hardinge
115, 215, 315 & 415 Cushman
Carroll, Cushman
2H
Davis, Hendey, Monarch, Porter-Cable, Rockford, Taft-Pierce, Walcott
3H
American, Carroll & Jamieson, Cincinnati, Davis, Greaves-Klusman, Hendey, Lodge & Shipley,
Monarch, Rockford, Sebastian, Springfield, Willard
6H
American, Boyes & Emmes, Cincinnati, Davis, Hendey, Monarch, Mueller, Nebel, Rahn-Larmon,
Sebastian, Sidney, South Bend, Springfield, Walcott
8H
Boyes & Emmes, Cincinnati, Hendey, Nebel, Oliver Ace, Rahn-Larmon, Sidney, Springfield
1J, 2J, 3J, 22J, 35J
Sjogren
2J
Sebastian, Sjogren
6K
South Bend
2L Leblond
Leblond
6L Leblond
LeBlond, Reed-Prentice
10L Leblond
LeBlond
2NS
Rivett
3NS
Rivett
4NS
Carroll, Flather, Gorton, LeBlond, L-W, Majestic, Nichols, Rivett, South Bend
5NS
Bradford, Fay & Scott, Flather, Lehmann-Brandes, Rivett, South Bend
6NS
Rivett
2OS & 3OS
Rivett
4OS
Carter & Hakes, Flather, Rivett
1R, 2R & 6R
Rivett
2S
Sebastian, Seneca, South Bend
3S
Seneca
4S
Rivett, Stark
32S
Stark
5SC & 52SC
Sloan & Chace
5ST
All Tool
5V
Van Norman
8WN
Lehmann-Brandes, Wade
S&M 0201
Tornos ENC162, ENC164, ELECTOR16, DECO2000 13/16
S&M CD25
Tornos DECO 2000 25.4mm
S&M SD255-36
Tornos TMB26
S&M T200
Tornos TOP200, ENC262 AND ENC264
S&M TD10
Tornos ENC74, DECO 2000 10mm
S&M TD10TXP
Tornos TOP100
S&M TD18TXP
Tornos TOP100
S&M TD25/167
Tornos ENC167, DECO 2000 20mm
S&M TD32S
Tornos DECO 2000 26/32mm
Note:
The specifications and information provided on this page are intended for part identification purposes only.
Although we believe them to be correct, dimensions should not be used for part construction or inspection.
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Inventory Index
Inventory Index