21 B&S, Index DIN 6343 and similar shape Collets

Collet

A

B

C

D
Int Thread*

Hex
Capacity

Round
Capacity

Square
Capacity

Price and
Availability

10 B&S

0.936"

2.500"

1.115"

~

27/64"

1/2"

11/32"

~

11 B&S

1.061"

2.875"

1.490"

~

17/32"

5/8"

7/16"

~

21 B&S

1.248"

2.813"

1.675"

~

55/64"

1"

45/64"

Click

22 B&S

1.498"

4.250"

1.925"

~

55/64"

1"

45/64"

~

22SC Stop B&S

1.498"

4.250"

1.925"

1.291x24 RH

1-5/64"

1-1/4"

7/8"

~

22SCY B&S

1.4987"

3.875"

1.925"

1.291x24 RH

?

?

?

~

11C

1.186"

2.875"

1.490"

~

55/64"

1"

45/64"

~

1" Greenlee

1.559"

4.438"

2.003"

~

55/64"

1"

45/64"

~

1-5/8" Greenlee

2.434"

5.750"

3.127"

~

1-13/32"

1-5/8"

1-9/64"

~

2" Greenlee

2.872"

5.875"

3.439"

~

1-23/32"

2"

1-13/32"

~

2-5/8" Greenlee

3.308"

6.500"

4.064"

~

2-17/64"

2-5/8"

1-27/32"

~

1" Gridley Burring

0.749"

2.385"

1.313"

~

51/64"

15/16"

21/32"

~

#0 Herbert

1.373"

3.563"

1.911"

~

55/64"

1"

45/64"

~

#2D Herbert

1.874"

3.906"

2.450"

~

1-19/64"

1-1/2"

1-3/64"

~

#4 Herbert

2.373"

4.938"

3.255"

~

1-23/64"

2"

1-13/32"

~

#7 Herbert

2.623"

5.375"

3.845"

~

1-57/64"

2-3/16"

1-35/64"

~

S26 5&7 Herbert Master

2.873"

6.125"

3.845"

~

2-17/64"

2-5/8"

1-27/32"

~

#12 Index (DIN 6343)

0.864"

2.172"

1.186"

~

27/64"

1/2"

11/32"

~

#18 Index (DIN 6343)

1.100"

2.750"

1.500"

~

47/64"

55/64"

19/32"

~

#20 Index (DIN 6343)

1.257"

2.938"

1.767"

~

11/16"

25/32"

9/16"

~

#25 Index (DIN 6343)

1.376"

2.750"

1.693"

~

55/64"

1"

45/64"

~

B30 Index (DIN 6343)

1.376"

3.156"

1.895"

~

1-1/64"

1-3/16"

53/64"

~

B42 Index (DIN 6343)

1.887"

3.688"

2.355"

M43x1 Stop

1-13/32"

1-5/8"

1-9/64"

~

B60 Index (DIN 6343)

2.596"

4.328"

3.290"

~

2-3/64"

2-3/8"

1-43/64"

~

ON-12 Index

0.786"

2.125"

1.030"

~

27/64"

1/2"

11/32"

~

ON-16 Index

0.983"

2.125"

1.225"

~

17/32"

5/8"

7/16"

~

OR-12 Index

0.786"

2.125"

1.030"

~

27/64"

1/2"

11/32"

~

OR-16 Index

0.983"

2.125"

1.225"

~

17/32"

5/8"

7/16"

~

5/8" Wickman Burring

0.749"

2.188"

1.035"

~

17/32"

5/8"

7/16"

~

1" Wickman Burring

0.999"

3.688"

1.520"

~

41/64"

3/4"

33/64"

~

10 B&S

Traub

11 B&S

Traub

21 B&S

Traub machines and many Hardinge lathes

22 B&S

Traub

22SC Stop B&S

?

22SCY B&S

?

11C

?

1" Greenlee

Greenlee

1-5/8" Greenlee

Greenlee

2" Greenlee

Greenlee

2-5/8" Greenlee

Greenlee

1" Gridley Burring

Acme-Gridley

#0 Herbert

Herbert

#2D Herbert

Herbert

#4 Herbert

Herbert

#7 Herbert

Herbert

S26 5&7 Herbert Master

Herbert

#12 Index (DIN 6343)

Index

#18 Index (DIN 6343)

Index

#20 Index (DIN 6343)

Index

#25 Index (DIN 6343)

Index

B30 Index (DIN 6343)

Index

B42 Index (DIN 6343)

Index, Traub

B60 Index (DIN 6343)

Index, Traub

ON-12 Index

Index

ON-16 Index

Index

OR-12 Index

Index

OR-16 Index

Index

5/8" Wickman Burring

Wickman

1" Wickman Burring

Wickman