ER Standard Grade Collets

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ER Collet Styles:

ER – Standard Service Collet

• For use in ER collet chucks for drilling, reaming, boring, tapping, and milling.
• Meets DIN 6499-B industry standard.
• Collapse range .0393”(1 mm) maximum.
• Size 11 collapse range .020”(1/2 mm) maximum.
• For higher runout tolerance, refer to high precision collets on page 30.
  
  

RER – Sealed Collet

• For use with regular straight shank tools.
• Collet slots are sealed to prevent coolant escape.
• Withstands coolant pressure up to 600 PSI.
  
  

Range: Always select collet that the high end of range is the closest larger or equal to cutting tool shank. Collets perform best when “on size”.

STANDARD COLLET SERIES

ER11 Part No.	ER16 Part No.	ER20 Part No.	ER25 Part No.	ER32 Part No.	ER40 Part No.	Inch Range	Metric Range
-	ER16-0031	-	-	-	-	.0312	-
ER11-0039*	ER16-0039	-	ER25-0039	-	-	.0197-.0394	.5-1
ER11-0059*	-	-	-	-	-	.0394-.0590	1-1.5
-	ER16-0062	ER20-0062	ER25-0062	-	-	.040-.062	-
ER11-0078*	ER16-0078	ER20-0078	ER25-0078	-	-	.039-.0787	1-2
-	ER16-0093	ER20-0093	ER25-0093	ER32-0093	-	.054-.093	-
ER11-0098*	ER16-0098	-	-	-	-	.0590-.0984	1.5-2.5
ER11-0118*	ER16-0118	ER20-0118	ER25-0118	ER32-0118	-	.0787-.1181	2-3
-	ER16-0125	ER20-0125	ER25-0125	ER32-0125	ER40-0125	.086-.125	-
ER11-0137*	ER16-0137	-	-	-	-	.098-.1378	2.5-3.5
-	ER16-0156	ER20-0156	-	ER32-0156	-	.117-.156	-
ER11-0157*	ER16-0157	ER20-0157	ER25-0157	ER32-0157	ER40-0157	.1181-.1575	3-4
ER11-0177*	ER16-0177	-	-	-	-	.1575-.1772	4-4.5
-	ER16-0187	ER20-0187	ER25-0187	ER32-0187	ER40-0187	.148-.187	-
ER11-0196*	ER16-0196	ER20-0196	ER25-0196	ER32-0196	ER40-0196	.1575-.1969	4-5
ER11-0216*	ER16-0216	-	-	-	-	.177-.2165	4.5-5.5
-	ER16-0218	ER20-0218	ER20-0218	ER32-0218	ER40-0218	.179-.218	-
ER11-0236*	ER16-0236	ER20-0236	ER25-0236	ER32-0236	ER40-0236	.1969-.2362	5-6
-	ER16-0250	ER20-0250	ER25-0250	ER32-0250	ER40-0250	.211-.250	-
ER11-0255*	ER16-0255	-	-	-	-	.217- .2559	5.5-6.5
ER11-0275*	ER16-0275	ER20-0275	ER25-0275	ER32-0275	ER40-0275	.2362-.2756	6-7
-	ER16-0281	ER20-0281	ER25-0281	ER32-0281	-	.242-.281	-
-	ER16-0295	-	-	-	-	.256-.295	7-7.5
-	ER16-0312	ER20-0312	ER25-0312	ER32-0312	ER40-0312	.273-.312	-
-	ER16-0315	ER20-0315	ER25-0315	ER32-0315	ER40-0315	.2756-.3150	7-8
-	ER16-0334	-	-	-	-	.296-.334	8-8.5
-	ER16-0343	ER20-0343	ER25-343	ER32-0343	ER40-0343	.304-.343	-
-	ER16-0354	ER20-0354	ER25-0354	ER32-0354	ER40-0354	.3150-.3543	8 – 9
-	ER16-0375	ER20-0375	ER25-0375	ER32-0375	ER40-0375	.336-.375	-
-	ER16-0393	ER20-0393	ER25-0393	ER32-0393	ER40-0393	.3543-.3937	9-10
-	ER16-0406	ER20-0406	ER25-0406	ER32-0406	ER40-0406	.3666-.406	-
-	-	ER20-0433	ER25-0433	ER32-0433	ER40-0433	.3937-.4331	10-11
-	-	ER20-0437	ER25-0437	ER32-0437	ER40-0437	.398-.437	-
-	-	ER20-468	ER25-468	ER32-0468	-	.429-.468	-
-	-	ER20-0472	ER25-0472	ER32-0472	ER40-0472	.4331-.4724	11-12
-	-	ER20-0500	ER25-0500	ER32-0500	ER40-0500	.461-.500	-
-	-	ER20-0511	ER25-0511	ER32-0511	ER40-0511	.4724-.5118	12-13
-	-	-	-	ER32-0531	ER40-0531	.492-.531	-
-	-	-	ER25-0551	ER32-0551	ER40-0551	.5118-.5512	13-14
-	-	-	ER25-0562	ER32-0562	ER40-0562	.523-.562	-
-	-	-	ER25-0590	ER32-0590	ER40-0590	.5512-.5906	14-15
-	-	-	ER25-0625	ER32-0625	ER40-0625	.586-.625	-
-	-	-	ER25-0630	ER32-0630	ER40-0630	.5906-.6299	15-16
-	-	-	-	ER32-0656	-	.617-.656	-
-	-	-	-	ER32-0669	ER40-0669	.6299-.6693	16-17
-	-	-	-	ER32-0687	ER40-0687	.648-.687	-
-	-	-	-	ER32-0708	ER40-0708	.6693-.7087	17-18
-	-	-	-	ER32-0748	ER40-0748	.7087-.7480	18-19
-	-	-	-	ER32-0750	ER40-0750	.711-.750	-
-	-	-	-	ER32-0787	ER40-0787	.7480-.7874	19-20
-	-	-	-	-	ER40-0826	.7874-.8268	20-21
-	-	-	-	-	ER40-0866	.8268-.8661	21-22
-	-	-	-	-	ER40-0875	.836-.875	-
-	-	-	-	-	ER40-0905	.8661-.9055	22-23
-	-	-	-	-	ER40-0944	9055-.9449	23-24
-	-	-	-	-	ER40-0984	.9449-.9843	24-25
-	-	-	-	-	ER40-1000	.961-1.000	-
-	-	-	-	-	ER40-1023	.9843-1.0236	25-26
-	-	-	-	-	ER40-1063	1.0236-1.0630	26-27
-	-	-	-	-	ER40-1102	1.0630-1.1024	27-28
-	-	-	-	-	ER40-1141	1.1024-1.1418	28-29
*ER11 maximum collapse range is .020” (.5mm)

COLLET

Type	L	D
ER11	708	.452
ER16	1.082	.669
ER20	1.240	.827
ER25	1.338	1.023
ER32	1.574	1.300
ER40	1.811	1.614

ER11 COLLET SETS

Part Number	Quantity	Range
ER11-S013	13	.5mm - 7mm

ER16 COLLET SETS

Part Number	Quantity	Range
ER16-S010	10	.5mm - 10mm
ER16-S012	12	1/16 - 13/32 x 1/32"

ER20 COLLET SETS

Part Number	Quantity	Range
ER20-S012	12	1mm - 13mm
ER20-S014	14	3/32"- 1/2" x 1/32"

ER25 COLLET SETS

Part Number	Quantity	Range
ER25-S015	15	1mm - 16mm

ER32 COLLET SETS

Part Number	Quantity	Range
ER32-S018	18	2mm - 20mm
ER32-S022	21	1/8 - 3/4 x 1/32"

ER40 COLLET SETS

Part Number	Quantity	Range
ER40-S023	23	4mm - 26mm