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ER Collets Sets

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  • Additional combination and high precision sets also available
  • Available in MM and Inch Sizes
  • As per DIN 6499 & ISO 15488 Standards
Collets Series A B
ER 8 8.5mm (.335 in) 13.5mm (.531 in)
ER 11 11.5mm (.453 in) 18mm (.709 in)
ER 16 17mm (.669 in) 27mm (1.063 in)
ER 20 21mm (.827 in) 31mm (1.220 in)
ER 25 26mm (1.024 in) 35mm (1.378 in)
ER 32 33mm (1.299 in) 40mm 1.575 in)
ER 40 41mm (1.614 in) 46mm (1.811 in)
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Type Style Description No. Of Collets Part Number
ER-8 Metric
Inch		 1mm to 5mm x .5mm
1/16”-3/16” x 1/64		 9
9		 08-SET9
08-SET9-INCH
ER-11 Metric
Inch
Inch		 1mm to 7mm x .5mm
1/16”-1/4” x 1/32
1/16” - 1/4” x 1/64		 13
7
13		 11-SET13
11-SET7-INCH
11-SET13-INCH
ER-16 Metric
Inch		 1mm to 10mm x 1mm
1/16” - 3/8” x 1/32”		 10
11		 16-SET10
16-SET11-INCH
ER20 Metric
Inch		 2mm to 13mm x 1mm
1/16” - 1/2” x 1/32”		 12
15		 20-SET12
20-SET15-INCH
ER25 Metric
Inch		 2mm to 16mm x 1mm
3/32” - 5/8” x 1/32”		 15
18		 25-SET15
25-SET18-INCH
ER32 Metric
Inch		 3mm to 20mm x 1mm
1/8”-3/4” x 1/32”		 18
21		 32-SET18
32-SET21-INCH
ER40 Metric
Inch
Inch		 4mm to 26mm x 1mm
1/8”-1” x 1/16”
1/8” - 1” x 1/32”		 23
15
29		 40-SET23
40-SET15-INCH
40-SET29-INCH