ER Collets to European Specification DIN 6499
Metric & English I.D. Sizes

ER Collets - Diagram

Extreme Accuracy: 16 slots for rigid clamping and extra concentricity.
Wide Clamping Range: For fewer changes and a low cost per set that covers a continuous range of sizes.
Versatility: Interchangeable with Schaublin, RD and ESX type collets, and compatible VDI tooling.
Ideal for Tool Extensions: High accuracy for long-reach applications.
Multiple Applications. Same collets can be used for drilling, milling, and reaming.
Precision Manufacturing: High grade spring steel is hardened and precision ground, with rigid quality control.

ER Collets to European Specification DIN 6499 ER Collets to European Specification DIN 6499 ER Collets to European Specification DIN 6499 Sealed with 2 Jets
ER Collets to European Specification DIN 6499

English I.D. Sizes


COLLET ER40 ER32 ER25 ER20 ER16 ER11
CAP STD SEALED* STD SEALED* STD SEALED* STD SEALED* STD SEALED* STD
1/16         ER25-1/16   ER20-1/16   ER16-1/16   ER11-1/16
3/32     ER32-3/32   ER25-3/32   ER20-3/32   ER16-3/32   ER11-3/32
1/8 ER40-1/8 ERC40-1/8 ER32-1/8 ERC32-1/8 ER25-1/8 ERC25-1/8 ER20-1/8 ERC20-1/8 ER16-1/8 ERC16-1/8 ER11-1/8
5/32 ER40-5/32 ERC40-5/32 ER32-5/32 ERC32-5/32 ER25-5/32 ERC25-5/32 ER20-5/32 ERC20-5/32 ER16-5/32 ERC16-5/32 ER11-5/32
3/16 ER40-3/16 ERC40-3/16 ER32-3/16 ERC32-3/16 ER25-3/16 ERC25-3/16 ER20-3/16 ERC20-3/16 ER16-3/16 ERC16-3/16 ER11-3/16
7/32 ER40-7/32 ERC40-7/32 ER32-7/32 ERC32-7/32 ER25-7/32 ERC25-7/32 ER20-7/32 ERC20-7/32 ER16-7/32 ERC16-7/32 ER11-7/32
1/4 ER40-1/4 ERC40-1/4 ER32-1/4 ERC32-1/4 ER25-1/4 ERC25-1/4 ER20-1/4 ERC20-1/4 ER16-1/4 ERC16-1/4 ER11-1/4
9/32 ER40-9/32 ERC40-9/32 ER32-9/32 ERC32-9/32 ER25-9/32 ERC25-9/32 ER20-9/32 ERC20-9/32 ER16-9/32 ERC16-9/32
5/16 ER40-5/16 ERC40-5/16 ER32-5/16 ERC32-5/16 ER25-5/16 ERC25-5/16 ER20-5/16 ERC20-5/16 ER16-5/16 ERC16-5/16
11/32 ER40-11/32 ERC40-11/32 ER32-11/32 ERC32-11/32 ER25-11/32 ERC25-11/32 ER20-11/32 ERC20-11/32 ER16-11/32 ERC16-11/32
3/8 ER40-3/8 ERC40-3/8 ER32-3/8 ERC32-3/8 ER25-3/8 ERC25-3/8 ER20-3/8 ERC20-3/8 ER16-3/8 ERC16-3/8
13/32 ER40-13/32 ERC40-13/32 ER32-13/32 ERC32-13/32 ER25-13/32 ERC25-13/32 ER20-13/32 ERC20-13/32 ER16-13/32 ERC16-13/32
7/16 ER40-7/16 ERC40-7/16 ER32-7/16 ERC32-7/16 ER25-7/16 ERC25-7/16 ER20-7/16 ERC20-7/16
15/32 ER40-15/32 ERC40-15/32 ER32-15/32 ERC32-15/32 ER25-15/32 ERC25-15/32 ER20-15/32 ERC20-15/32
1/2 ER40-1/2 ERC40-1/2 ER32-1/2 ERC32-1/2 ER25-1/2 ERC25-1/2 ER20-1/2 ERC20-1/2
17/32 ER40-17/32 ERC40-17/32 ER32-17/32 ERC32-17/32 ER25-17/32 ERC25-17/32
9/16 ER40-9/16 ERC40-9/16 ER32-9/16 ERC32-9/16 ER25-9/16 ERC25-9/16
19/32 ER40-19/32 ERC40-19/32 ER32-19/32 ERC32-19/32 ER25-19/32 ERC25-19/32
5/8 ER40-5/8 ERC40-5/8 ER32-5/8 ERC32-5/8 ER25-5/8 ERC25-5/8
21/32 ER40-21/32 ERC40-21/32 ER32-21/32 ERC32-21/32
11/16 ER40-11/16 ERC40-11/16 ER32-11/16 ERC32-11/16
23/32 ER40-23/32 ERC40-23/32 ER32-23/32 ERC32-23/32
3/4 ER40-3/4 ERC40-3/4 ER32-3/4 ERC32-3/4
25/32 ER40-25/32 ERC40-25/32
13/16 ER40-13/16 ERC40-13/16
27/32 ER40-27/32 ERC40-27/32
7/8 ER40-7/8 ERC40-7/8
29/32 ER40-29/32 ERC40-29/32
15/16 ER40-15/16 ERC40-15/16
31/32 ER40-31/32 ERC40-31/32
1" ER40-1 ERC40-1

NON-SEALED COLLETS HAVE:
1/32" COLLAPSE RANGE PER COLLET, EXCEPT FOR
ER8, ER11 & ER12 WHICH HAS A .019 COLLAPSING RANGE

English Collet Sets


 CAT. NO.

COLLET

SERIES

 CONTENTS OF COLLET SETS

ER11-2SET

ER11

  7 COLLETS - 1/16 TO 1/4 X 1/32" INCREMENTS

ER16-2SET

ER16

12 COLLETS - 1/16 TO 13/32 X 1/32" INCREMENTS

ER20-2SET

ER20

15 COLLETS - 1/16 TO 1/2 X 1/32" INCREMENTS

ER25-2SET

ER25

19 COLLETS - 1/16 TO 5/8 X 1/32" INCREMENTS

ER32-2SET

ER32

22 COLLETS - 3/32 TO 3/4 X 1/32" INCREMENTS

ER40-2SET

ER40

29 COLLETS - 1/8 TO 1" X 1/32" INCREMENTS

ALL DIMENSIONS ARE IN MILLIMETERS
*NOTE: ER8 Collet is without 30° nose taper
COLLET L L1 L2 L3 D    D1 D2

ER8*

13.5

2.98

1.2

1.5

8.5

8.0

6.5

ER11

18.0

3.80

2.0

2.5

11.5

11.0

9.5

ER16

27.5

6.26

2.7

4.0

17.0

16.0

13.8

ER20

31.5

6.36

2.8

4.8

21.0

20.0

17.4

ER25

34.0

6.66

3.1

5.0

26.0

25.0

22.0

ER32

40.0

7.16

3.6

5.5

33.0

32.0

29.2

ER40

46.0

7.66

4.1

7.0

41.0

40.0

36.2

ER50

60.0

12.60

5.5

8.5

52.0

50.0

46.2


Metric I.D. Sizes


COLLET ER40 ER32 ER25
CAP. STD SEALED* SEALED STD SEALED* SEALED STD SEALED* SEALED
MM     W/ 2 JETS     W/ 2 JETS     W/ 2 JETS
2-1             ER25-2 ERC25-2  
3-2       ER32-3 ERC32-3   ER25-3 ERC25-3  
4-3 ER40-4 ERC40-4 ERCC40-4 ER32-4 ERC32-4 ERCC32-4 ER25-4 ERC25-4 ERCC25-4
5-4 ER40-5 ERC40-5 ERCC40-5 ER32-5 ERC32-5 ERCC32-5 ER25-5 ERC25-5 ERCC25-5
6-5 ER40-6 ERC40-6 ERCC40-6 ER32-6 ERC32-6 ERCC32-6 ER25-6 ERC25-6 ERCC25-6
7-6 ER40-7 ERC40-7 ERCC40-7 ER32-7 ERC32-7 ERCC32-7 ER25-7 ERC25-7 ERCC25-7
8-7 ER40-8 ERC40-8 ERCC40-8 ER32-8 ERC32-8 ERCC32-8 ER25-8 ERC25-8 ERCC25-8
9-8 ER40-9 ERC40-9 ERCC40-9 ER32-9 ERC32-9 ERCC32-9 ER25-9 ERC25-9 ERCC25-9
10-9 ER40-10 ERC40-10 ERCC40-10 ER32-10 ERC32-10 ERCC32-10 ER25-10 ERC25-10 ERCC25-10
11-10 ER40-11 ERC40-11 ERCC40-11 ER32-11 ERC32-11 ERCC32-11 ER25-11 ERC25-11 ERCC25-11
12-11 ER40-12 ERC40-12 ERCC40-12 ER32-12 ERC32-12 ERCC32-12 ER25-12 ERC25-12 ERCC25-12
13-12 ER40-13 ERC40-13 ERCC40-13 ER32-13 ERC32-13 ERCC32-13 ER25-13 ERC25-13 ERCC25-13
14-13 ER40-14 ERC40-14 ERCC40-14 ER32-14 ERC32-14 ERCC32-14 ER25-14 ERC25-14 ERCC25-14
15-14 ER40-15 ERC40-15 ERCC40-15 ER32-15 ERC32-15 ERCC32-15 ER25-15 ERC25-15 ERCC25-15
16-15 ER40-16 ERC40-16 ERCC40-16 ER32-16 ERC32-16 ERCC32-16 ER25-16 ERC25-16 ERCC25-16
17-16 ER40-17 ERC40-17 ERCC40-17 ER32-17 ERC32-17 ERCC32-17
18-17 ER40-18 ERC40-18 ERCC40-18 ER32-18 ERC32-18 ERCC32-18
19-18 ER40-19 ERC40-19 ERCC40-19 ER32-19 ERC32-19 ERCC32-19
20-19 ER40-20 ERC40-20 ERCC40-20 ERC32-20 ERC32-20 ERCC32-20
21-20 ER40-21 ERC40-21 ERCC40-21
22-21 ER40-22 ERC40-22 ERCC40-22
23-22 ER40-23 ERC40-23 ERCC40-23
24-23 ER40-24 ERC40-24 ERCC40-24
25-24 ER40-25 ERC40-25 ERCC40-25
26-25 ER40-26 ERC40-26 ERCC40-26

COLLET ER20 ER16
CAP. STD SEALED* SEALED STD SEALED* SEALED
MM     W/ 2 JETS     W/ 2 JETS
1.0-0.5 ER20-1     ER16-1    
1.5-1 ER20-1.5     ER16-1.5    
2-1 ER20-2     ER16-2 ERC16-2  
2.5-1.5 ER20-2.5     ER16-2.5    
3-2 ER20-3 ERC20-3   ER16-3 ERC16-3  
3.5-2.5 ER20-3.5     ER16-3.5    
4-3 ER20-4 ERC20-4 ERCC20-4 ER16-4 ERC16-4 ERCC16-4
4.5-3.5 ER20-4.5     ER16-4.5    
5-4 ER20-5 ERC20-5 ERCC20-5 ER16-5 ERC16-5 ERCC16-5
5.5-4.5 ER20-5.5     ER16-5.5    
6-5 ER20-6 ERC20-6 ERCC20-6 ER16-6 ERC16-6 ERCC16-6
6.5-5.5 ER20-6.5     ER16-6.5    
7-6 ER20-7 ERC20-7 ERCC20-7 ER16-7 ERC16-7 ERCC16-7
7.5-6.5 ER20-7.5     ER16-7.5    
8-7 ER20-8 ERC20-8 ERCC20-8 ER16-8 ERC16-8 ERCC16-8
8.5-7.5 ER20-8.5     ER16-8.5    
9-8 ER20-9 ERC20-9 ERCC20-9 ER16-9 ERC16-9 ERCC16-9
9.5-8.5 ER20-9.5     ER16-9.5    
10-9 ER20-10 ERC20-10 ERCC20-10 ER16-10 ERC16-10 ERCC16-10
10.5-9.5 ER20-10.5    
11-10 ER20-11 ERC20-11 ERCC20-11
11.5-10.5 ER20-11.5    
12-11 ER20-12 ERC20-12 ERCC20-12
12.5-11.5 ER20-12.5    
13-12 ER20-13 ERC20-13 ERCC20-13

NON-SEALED COLLETS HAVE:
1/32" COLLAPSE RANGE PER COLLET, EXCEPT FOR
ER8, ER11 & ER12 WHICH HAS A .019 COLLAPSING RANGE


Metric Collet Sets


CAT. NO.

COLLET

SERIES

 CONTENTS OF COLLET SETS

ER8-1SET

ER8

9 COLLETS-1 TO 5MM X .5MM INCREMENTS
ER11-1SET ER11 13 COLLETS-1 TO 7MM X .5MM INCREMENTS
ER16-1SET ER16 10 COLLETS-1 TO 10MM X 1MM INCREMENTS
ER20-1SET ER20 12 COLLETS-2 TO 13MM X 1MM INCREMENTS
ER25-1SET ER25 15 COLLETS-2 TO 16MM X 1MM INCREMENTS
ER32-1SET ER32 18 COLLETS-3 TO 20MM X 1MM INCREMENTS
ER40-1SET ER40 23 COLLETS-4 TO 26MM X 1MM INCREMENTS
ER50-1SET ER50 12 COLLETS-12 TO 34MM X 2MM INCREMENTS


COLLET

RANGE

MILLIMETERS

SERIES

ER12

CAT. NO.

SERIES

ER11

CAT. NO.

SERIES

ER8

CAT. NO.

1.0-0.5

ER12-1

ER11-1

ER8-1

1.5-1.0

ER12-1.5

ER11-1.5

ER8-1.5

2.0-1.5

ER12-2

ER11-2

ER8-2

2.5-2.0

ER12-2.5

ER11-2.5

ER8-2.5

3.0-2.5

ER12-3

ER11-3

ER8-3

3.5-3.0

ER12-3.5

ER11-3.5

ER8-3.5

4.0-3.5

ER12-4

ER11-4

ER8-4

4.5-4.0

ER12-4.5

ER11-4.5

ER8-4.5

5.0-4.5

ER12-5

ER11-5

ER8-5

5.5-5.0

ER12-5.5

ER11-5.5

 

6.0-5.5

ER12-6

ER11-6

 

6.5-6.0

ER12-6.5

ER11-6.5

 

7.0-6.5

ER12-7

ER11-7