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Product Family
Collet Fixtures
Collet Nuts
Collet Stands
Milling Machine Collet Chucks
Milling Machine Collets
Tap Collets
Tool Holder Cleaning Tools
Collet Type
ER-20
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System of Measurement
Inch
Metric
Collet Size
1/16"
1/16"
to
5/32"
3/32"
3/32"
to
1/2"
1/8"
9/64"
5/32"
3/16"
3/16"
to
1/2"
7/32"
1/4"
9/32"
5/16"
21/64"
11/32"
23/64"
3/8"
13/32"
Grip Range
0.043" to 0.062"
0.043" to 0.063"
0.054" to 0.093"
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 0.187"
0.148" to 0.188"
0.179" to 0.218"
0.179" to 0.219"
0.183" to 0.188"
0.211" to 0.250"
0.230" to 0.250"
0.242" to 0.281"
0.273" to 0.312"
0.273" to 0.313"
For Holding
Boring Bars
Burs
Collets
Counterbores
Countersinks
Drill Bits
End Mills
Grinding Bits
Reamers
Router Bits
Taps
Thread Mills
Workpieces
Face Type
Round
Overall Length
1.22"
1.24"
2
3/8"
5.6"
6.4"
6.67"
142 mm
163 mm
169 mm
Specifications Met
ASME B5.50
DIN Standard
ISO Standard
For Use With
CNC Lathes
CNC Machines
Collet Chucks
Drill Presses
Lathes
Milling Machines
Routers
Tapping Arms
Tool Holder Bores
Material
Plastic
Steel
DFARS Specialty Metals
Exempt
Length
1.22"
1.24"
2
3/8"
5.6"
6.4"
6.67"
142 mm
163 mm
169 mm
Total Indicated Runout (TIR) Accuracy
0.0001"
0.0002"
0.0004"
U.S.–Mexico–Canada Agreement (USMCA) Qualifying
Yes
No
RoHS
Compliant
Not Compliant
REACH
Compliant
Not Compliant
Export Control Classification Number (ECCN)
EAR99
Body Diameter
0.83"
0.95"
1"
1.34"
Approximate Diameter Compression
0.005"
1/64"
1/32"
Shank Type
BT Taper
CAT Dual Contact Taper
CAT Taper
HSK Taper
NMTB Taper
R8 Taper
Round
Thread Size
7/16"
-20
5/8"
-11
1"-8
M12
M16
M24
M25
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"
M1.6 to M3.5
M4
M4.5 to M5
M6 to M6.5
M6.5 to M8
M10
M12 to M12.5
Machine Taper Number
BT 30
BT 40
CAT 40
CAT 50
HSK 63A
HSK 100A
NMTB 40
Shank Diameter
0.141"
0.168"
0.194"
0.22"
0.255"
0.318"
0.323"
0.367"
0.381"
3/4"
1"
Bit Shank Size
0.039" to 0.551"
Maximum Pressure
1,400 psi
2,000 psi
2,900 psi
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131 Products
...
Milling Machine Collets
Milling Machine Collets
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49 products
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Grip cutting tools while also directing coolant to the tool’s cutting edge
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Hold your tap firmly in a collet chuck or tap holder to create internal threads in workpieces
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Mount on milling machines and other surfaces to grip and release parts with 5C collets
1 product
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Secure collets in milling machine spindles
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Store and organize multiple collets of the same type
1 product
Collet Nuts
Secure collets inside collet chucks and fixtures
12 products
Tool Holder Cleaning Tools
Wipe away chips, lubricants, and fine dust to keep tool holders debris-free
1 product
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)