CAT 40 ER COLLET CHUCK

HIGH PRECISION TOOLHOLDING

ER Collet Chucks are an ideal solution for most drilling and lighter higher speed milling applications producing operational speeds as high as 25,000 RPM. The versatile design of the ER Collet Chuck provides a wide range of machining options, from production to high precision machining. Simply select the right collet and nut combination from our range of performance choices to achieve the best toolholder for your application.  


ER Collet Chucks
  • Available in CAT40, CAT40 AD/B (C40BC) coolant and CAT40 Simulfit (C40BC)
  • Collet seat taper T.I.R. ≤ .0002”
  • Accepts DIN 6499 collets
  • Balanced to G2.5
  • Constructed of alloy steel for long, durable service life
  • Hardened to Rc: 52-56 to avoid damaging collet chuck treads

Collet Range Specifications 
 

Collet & Nut Performance Selection  


 
Part #
Taper:
Class:
Size:
Simulfit:
DIN Coolant:
B:
C:
Socket Depth:
Nut:
Nut Type:
Torque:
Back Up Screw:
Wrench:
 
C40-11ERF250
CAT 40
STANDARD
ER 11
N
N
.75"
2.50"
2.25"
11ERHN
FLUSH NUT
22 Ft. Lbs
029-909
300CNW
C40-11ERF400
CAT 40
STANDARD
ER 11
N
N
.75"
4.00"
2.25"
11ERHN
FLUSH NUT
22 Ft. Lbs
029-909
300CNW
C40-11ERF600
CAT 40
STANDARD
ER 11
N
N
.75"
6.00"
2.25"
11ERHN
FLUSH NUT
22 Ft. Lbs
029-909
300CNW
C40-16ERF250
CAT 40
STANDARD
ER 16
N
N
1.10"
2.50"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40-16ERP262
CAT 40
STANDARD
ER 16
N
N
1.10"
2.62"
2.43"
16ERHPN
POWER NUT
42 Ft. Lbs.
-
ECN20W
C40-16ERC272
CAT 40
STANDARD
ER 16
N
N
1.10"
2.72"
2.43"
16ERHCN
COOLANT NUT
52 Ft. Lbs.
-
ECN20W
C40-16ERF300
CAT 40
STANDARD
ER 16
N
N
1.10"
3.00"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40-16ERP312
CAT 40
STANDARD
ER 16
N
N
1.10"
3.12"
2.43"
16ERHPN
POWER NUT
42 Ft. Lbs.
-
ECN20W
C40-16ERC322
CAT 40
STANDARD
ER 16
N
N
1.10"
3.22"
2.43"
16ERHCN
COOLANT NUT
52 Ft. Lbs.
-
ECN20W
C40-16ERF400
CAT 40
STANDARD
ER 16
N
N
1.10"
4.00"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40-16ERC422
CAT 40
STANDARD
ER 16
N
N
1.10"
4.22"
2.43"
16ERHCN
COOLANT NUT
52 Ft. Lbs.
-
ECN20W
C40-16ERF500
CAT 40
STANDARD
ER 16
N
N
1.10"
5.00"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40-16ERP512
CAT 40
STANDARD
ER 16
N
N
1.10"
5.12"
2.43"
16ERHPN
POWER NUT
42 Ft. Lbs.
-
ECN20W
C40-16ERC522
CAT 40
STANDARD
ER 16
N
N
1.10"
5.22"
2.43"
16ERHCN
COOLANT NUT
52 Ft. Lbs.
-
ECN20W
C40-16ERF800
CAT 40
STANDARD
ER 16
N
N
1.10"
8.00"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40-16ERP812
CAT 40
STANDARD
ER 16
N
N
1.10"
8.12"
2.43"
16ERHPN
POWER NUT
42 Ft. Lbs.
-
ECN20W
C40BC-16ERF250
CAT 40 AD/B
STANDARD
ER 16
N
Y
1.10"
2.50"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40BC-16ERP262
CAT 40 AD/B
STANDARD
ER 16
N
Y
1.10"
2.62"
2.43"
16ERHPN
POWER NUT
42 Ft. Lbs.
-
ECN20W
C40BC-16ERF300
CAT 40 AD/B
STANDARD
ER 16
N
Y
1.10"
3.00"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40BC-16ERP312
CAT 40 AD/B
STANDARD
ER 16
N
Y
1.10"
3.12"
2.43"
16ERHPN
POWER NUT
42 Ft. Lbs.
-
ECN20W
C40BC-16ERF400
CAT 40 AD/B
STANDARD
ER 16
N
Y
1.10"
4.00"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40BC-16ERF500
CAT 40 AD/B
STANDARD
ER 16
N
Y
1.10"
5.00"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40BC-16ERP512
CAT 40 AD/B
STANDARD
ER 16
N
Y
1.10"
5.12"
2.43"
16ERHPN
POWER NUT
42 Ft. Lbs.
-
ECN20W
C40F-11ERF400
CAT 40 Simulfit
STANDARD
ER 11
Y
N
.75"
4.00"
2.25"
11ERHN
FLUSH NUT
22 Ft. Lbs
029-909
300CNW
C40F-11ERF600
CAT 40 Simulfit
STANDARD
ER 11
Y
N
.75"
6.00"
2.25"
11ERHN
FLUSH NUT
22 Ft. Lbs
029-909
300CNW
C40F-16ERF250
CAT 40 Simulfit
STANDARD
ER 16
Y
N
1.10"
2.50"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40F-16ERF400
CAT 40 Simulfit
STANDARD
ER 16
Y
N
1.10"
4.00"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40F-16ERF500
CAT 40 Simulfit
STANDARD
ER 16
Y
N
1.10"
5.00"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40F-16ERF600
CAT 40 Simulfit
STANDARD
ER 16
Y
N
1.10"
6.00"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40F-16ERF800
CAT 40 Simulfit
STANDARD
ER 16
Y
N
1.10"
8.00"
2.43"
16ERHN
FLUSH NUT
52 Ft. Lbs.
BS-20
ECN20W
C40-20ERF300
CAT 40
STANDARD
ER 20
N
N
1.34"
3.00"
2.43"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C40-20ERP312
CAT 40
STANDARD
ER 20
N
N
1.34"
3.12"
2.43"
20ERHPN
POWER NUT
60 Ft. Lbs.
-
20ERHNW
C40-20ERC322
CAT 40
STANDARD
ER 20
N
N
1.34"
3.22"
2.43"
20ERHCN
COOLANT NUT
74 Ft. Lbs
-
20ERHNW
C40-20ERF400
CAT 40
STANDARD
ER 20
N
N
1.34"
4.00"
3.88"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C40-20ERP412
CAT 40
STANDARD
ER 20
N
N
1.34"
4.12"
3.88"
20ERHPN
POWER NUT
60 Ft. Lbs.
-
20ERHNW
C40-20ERC422
CAT 40
STANDARD
ER 20
N
N
1.34"
4.22"
3.88"
20ERHCN
COOLANT NUT
74 Ft. Lbs
-
20ERHNW
C40-20ERF600
CAT 40
STANDARD
ER 20
N
N
1.34"
6.00"
3.88"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C40-20ERP612
CAT 40
STANDARD
ER 20
N
N
1.34"
6.12"
3.88"
20ERHPN
POWER NUT
60 Ft. Lbs.
-
20ERHNW
C40-20ERF800
CAT 40
STANDARD
ER 20
N
N
1.34"
8.00"
3.88"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C40-20ERP812
CAT 40
STANDARD
ER 20
N
N
1.34"
8.12"
3.88"
20ERHPN
POWER NUT
60 Ft. Lbs.
-
20ERHNW
C40BC-20ERF300
CAT 40 AD/B
STANDARD
ER 20
N
Y
1.34"
3.00"
2.43"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C40BC-20ERF400
CAT 40 AD/B
STANDARD
ER 20
N
Y
1.34"
4.00"
3.88"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C40BC-20ERF600
CAT 40 AD/B
STANDARD
ER 20
N
Y
1.34"
6.00"
3.88"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C40F-20ERF300
CAT 40 Simulfit
STANDARD
ER 20
N
N
1.34"
3.00"
2.43"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C40F-20ERF400
CAT 40 Simulfit
STANDARD
ER 20
Y
N
1.34"
4.00"
3.88"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C40F-20ERF600
CAT 40 Simulfit
STANDARD
ER 20
Y
N
1.34"
6.00"
3.88"
20ERHN
FLUSH NUT
74 Ft. Lbs
BS-09
20ERHNW
C40-25ERF250
CAT 40
STANDARD
ER 25
N
N
1.64"
2.50"
2.50"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C40-25ERP262
CAT 40
STANDARD
ER 25
N
N
1.64"
2.62"
2.50"
25ERPN
POWER NUT
86 Ft. Lbs.
-
25ERNW
C40-25ERF400
CAT 40
STANDARD
ER 25
N
N
1.64"
4.00"
3.50"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C40-25ERP412
CAT 40
STANDARD
ER 25
N
N
1.64"
4.12"
3.50"
25ERPN
POWER NUT
86 Ft. Lbs.
-
25ERNW
C40-25ERF600
CAT 40
STANDARD
ER 25
N
N
1.64"
6.00"
3.50"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C40BC-25ERF250
CAT 40 AD/B
STANDARD
ER 25
N
Y
1.64"
2.50"
2.50"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C40BC-25ERF400
CAT 40 AD/B
STANDARD
ER 25
N
Y
1.64"
4.00"
3.50"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C40BC-25ERF600
CAT 40 AD/B
STANDARD
ER 25
N
Y
1.64"
6.00"
3.50"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C40F-25ERF250
CAT 40 Simulfit
STANDARD
ER 25
Y
N
1.64"
2.50"
2.50"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C40F-25ERF400
CAT 40 Simulfit
STANDARD
ER 25
Y
N
1.64"
4.00"
3.50"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C40F-25ERF600
CAT 40 Simulfit
STANDARD
ER 25
Y
N
1.64"
6.00"
3.50"
25ERN
FLUSH NUT
95 Ft. Lbs.
BS-11
25ERNW
C40-32ERF236
CAT 40
STANDARD
ER 32
N
N
1.97"
2.36"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C40-32ERP248
CAT 40
STANDARD
ER 32
N
N
1.97"
2.48"
3.88"
32ERPN
POWER NUT
100 Ft. Lbs.
-
32ERNW
C40-32ERF300
CAT 40
STANDARD
ER 32
N
N
1.97"
3.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C40-32ERP312
CAT 40
STANDARD
ER 32
N
N
1.97"
3.12"
3.88"
32ERPN
POWER NUT
100 Ft. Lbs.
-
32ERNW
C40-32ERC322
CAT 40
STANDARD
ER 32
N
N
1.97"
3.22"
3.88"
32ERCN
COOLANT NUT
125 Ft. Lbs.
-
32ERNW
C40-32ERF400
CAT 40
STANDARD
ER 32
N
N
1.97"
4.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C40-32ERP412
CAT 40
STANDARD
ER 32
N
N
1.97"
4.12"
3.88"
32ERPN
POWER NUT
100 Ft. Lbs.
-
32ERNW
C40-32ERC422
CAT 40
STANDARD
ER 32
N
N
1.97"
4.22"
3.88"
32ERCN
COOLANT NUT
125 Ft. Lbs.
-
32ERNW
C40-32ERF600
CAT 40
STANDARD
ER 32
N
N
1.97"
6.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C40-32ERP612
CAT 40
STANDARD
ER 32
N
N
1.97"
6.12"
3.88"
32ERPN
POWER NUT
100 Ft. Lbs.
-
32ERNW
C40-32ERC622
CAT 40
STANDARD
ER 32
N
N
1.97"
6.22"
3.88"
32ERCN
COOLANT NUT
125 Ft. Lbs.
-
32ERNW
C40-32ERF800
CAT 40
STANDARD
ER 32
N
N
1.97"
8.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C40BC-32ERF300
CAT 40 AD/B
STANDARD
ER 32
N
Y
1.97"
3.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C40BC-32ERP312
CAT 40 AD/B
STANDARD
ER 32
N
Y
1.97"
3.12"
3.88"
32ERPN
POWER NUT
100 Ft. Lbs.
-
32ERNW
C40BC-32ERF400
CAT 40 AD/B
STANDARD
ER 32
N
Y
1.97"
4.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C40BC-32ERF600
CAT 40 AD/B
STANDARD
ER 32
N
Y
1.97"
6.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C40F-32ERF300
CAT 40 Simulfit
STANDARD
ER 32
Y
N
1.97"
3.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C40F-32ERF400
CAT 40 Simulfit
STANDARD
ER 32
Y
N
1.97"
4.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C40F-32ERF600
CAT 40 Simulfit
STANDARD
ER 32
Y
N
1.97"
6.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C40F-32ERF800
CAT 40 Simulfit
STANDARD
ER 32
Y
N
1.97"
8.00"
3.88"
32ERN
FLUSH NUT
125 Ft. Lbs.
BS-18
32ERNW
C40-40ERF400
CAT 40
STANDARD
ER 40
N
N
2.47"
4.00"
4.10"
40ERN
FLUSH NUT
162 Ft. Lbs.
BS-10
40ERNW
C40-40ERP412
CAT 40
STANDARD
ER 40
N
N
2.47"
4.12"
4.10"
40ERPN
POWER NUT
146 Ft. Lbs
BS-10
40ERNW
C40-40ERF600
CAT 40
STANDARD
ER 40
N
N
2.47"
6.00"
4.10"
40ERN
FLUSH NUT
162 Ft. Lbs.
BS-10
40ERNW
C40BC-40ERF400
CAT 40 AD/B
STANDARD
ER 40
N
Y
2.47"
4.00"
4.10"
40ERN
FLUSH NUT
162 Ft. Lbs.
BS-10
40ERNW
C40F-40ERF400
CAT 40 Simulfit
STANDARD
ER 40
Y
N
2.47"
4.00"
4.10"
40ERN
FLUSH NUT
162 Ft. Lbs.
BS-10
40ERNW
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