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Collet Type
ER-25
Select more
System of Measurement
Inch
Metric
Collet Size
1/16"
1/16"
to
5/32"
3/32"
3/32"
to
5/8"
1/8"
9/64"
5/32"
3/16"
3/16"
to
5/8"
7/32"
1/4"
9/32"
5/16"
21/64"
11/32"
23/64"
3/8"
13/32"
Grip Range
0.043" to 0.063"
0.054" to 0.094"
0.074" to 0.094"
0.086" to 0.125"
0.105" to 0.125"
0.117" to 0.156"
0.141" to 0.156"
0.148" to 0.188"
0.179" to 0.219"
0.211" to 0.250"
0.242" to 0.281"
0.273" to 0.313"
0.304" to 0.344"
0.336" to 0.375"
0.367" to 0.406"
0.398" to 0.438"
0.429" to 0.469"
0.461" to 0.500"
For Holding
Boring Bars
Burs
Collets
Counterbores
Countersinks
Drill Bits
End Mills
Grinding Bits
Reamers
Router Bits
Taps
Thread Mills
Workpieces
Face Type
Round
For Use With
CNC Lathes
CNC Machines
Collet Chucks
Drill Presses
Lathes
Milling Machines
Routers
Tapping Arms
Material
52100 Alloy Steel
Chrome-Moly Steel
Steel
Overall Length
1.34"
1.38"
Specifications Met
DIN Standard
ISO Standard
Export Control Classification Number (ECCN)
EAR99
U.S.–Mexico–Canada Agreement (USMCA) Qualifying
Yes
No
REACH
Compliant
Not Compliant
RoHS
Compliant
Not Compliant
DFARS Specialty Metals
Exempt
Total Indicated Runout (TIR) Accuracy
0.0002"
0.0004"
Approximate Diameter Compression
1/64"
1/32"
Shank Type
CAT Taper
Length
1.34"
1.38"
Projection
2
1/2"
6"
For Tap Size
No. 0 to No. 6
No. 12 to
7/32"
5/32"
to No. 8
3/16"
to No. 10
1/4"
5/16"
3/8"
7/16"
1/2"
9/16"
5/8"
11/16"
M1.6 to M3.5
M4
M4.5 to M5
M6 to M6.5
M6.5 to M8
M10
Machine Taper Number
CAT 40
Diameter
2
3/4"
5"
Shank Diameter
0.141"
0.168"
0.194"
0.22"
0.255"
0.318"
0.323"
0.367"
0.381"
0.429"
0.437"
0.48"
0.542"
Square Shank Size
0.11"
0.131"
0.152"
0.165"
0.191"
0.238"
0.242"
0.275"
0.286"
0.322"
0.328"
0.36"
0.406"
Bolt Circle Diameter
2
1/8"
4"
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