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Precision ER Series Collets & Sets

Features and Benefits

  • ER collets system is made of a special elastic steel material under an excellent heat treatment and precise grinding process, which results in precise accuracy, powerful clamping ability and durability.

  • Collet can clamp for a specific standard size and its next size.

  • Can be widely used for boring, milling, drilling and tapping as well as for grinding operations.

  • Available for all sizes.

  • All sets come in a case.

Collapse Range

ER11 collets collapse approximately 1/64″, while maintaining full accuracy. All other types collapse approximately 1/32″, while maintaining full accuracy.

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Description

Additional Information

Precision ER Series Collets

Series Size [mm] Size [inch] MSC Item #
ER8 0.50-1.00 0.0196-0.0393 50336494
ER8 1.00-1.50 0.0393-0.0590 50336452
ER8 1.50-2.00 0.0590-0.0787 50336478
ER8 2.00-2.50 0.0787-0.0984 50336940
ER8 2.50-3.00 0.0984-0.1180 50336932
ER8 3.00-3.50 0.1180-0.1377 50336924
ER8 3.50-4.00 0.1377-0.1574 50336908
ER8 4.00-4.50 0.1574-0.1771 50336916
ER8 4.50-5.00 0.1771-0.1968 50336890
ER11 0.50-1.00 0.0200-0.0390 00156497
ER11 1.00-1.50 0.0390-0.0590 00156505
ER11 1.50-2.00 0.0590-0.0780 00156513
ER11 2.00-2.50 0.0780-0.0980 00156521
ER11 2.50-3.00 0.0980-0.1180 00156539
ER11 3.00-3.50 0.1180-0.1370 00156547
ER11 3.50-4.00 0.1370-0.1570 00156554
ER11 4.00-4.50 0.1570-0.1770 00156562
ER11 4.50-5.00 0.1770-0.1960 00156570
ER11 5.00-5.50 0.1960-0.2160 00156588
ER11 5.50-6.00 0.2160-0.2360 00156596
ER11 6.00-6.50 0.2360-0.2550 00156604
ER11 6.50-7.00 0.2550-0.2750 00156612
ER16 0.50-1.00 0.0200-0.0390 00156620
ER16 1.00-2.00 0.0390-0.0780 00156638
ER16 1.00-1.50 0.0590-0.0984 50336593
ER16 2.00-2.50 0.0787-0.0984 50336585
ER16 2.00-3.00 0.0780-0.1180 00156646
ER16 2.50-3.50 0.0980-0.1378 50336585
ER16 3.00-3.50 0.1180-0.1377 50336577
ER16 3.00-4.00 0.1180-0.1570 00156653
ER16 4.00-4.50 0.1575-0.1772 50336569
ER16 4.00-5.00 0.1570-0.1960 00156661
ER16 5.00-5.50 0.1700-0.2165 50336551
ER16 5.00-6.00 0.1960-0.2360 00156679
ER16 5.50-6.50 0.2170-0.2559 50336544
ER16 6.00-7.00 0.2360-0.2750 00156687
ER16 7.00-7.50 0.2560-0.2950 50336536
ER16 7.00-8.00 0.2750-0.3140 00156695
ER16 8.00-8.50 0.2960-0.3340 50336510
ER16 8.00-9.00 0.3140-0.3540 00156703
ER16 9.00-10.00 0.3540-0.3930 00156711
ER20 1.00-2.00 0.0390-0.0780 00156729
ER20 2.00-3.00 0.0780-0.1180 00156737
ER20 3.00-4.00 0.1180-0.1570 00156745
ER20 4.00-5.00 0.1570-0.1960 00156752
ER20 5.00-6.00 0.1960-0.2360 00156760
ER20 6.00-7.00 0.2360-0.2750 00156778
ER20 7.00-8.00 0.2750-0.3140 00156786
ER20 8.00-9.00 0.3140-0.3540 00156794
ER20 9.00-10.00 0.3540-0.3930 00156802
ER20 10.00-11.00 0.3930-0.4330 00156810
ER20 11.00-12.00 0.4330-0.4720 00156828
ER20 12.00-13.00 0.4720-0.5110 71799225
ER25 1.00-2.00 0.0390-0.0780 00156836
ER25 2.00-3.00 0.0800-0.1180 00156844
ER25 3.00-4.00 0.1180-0.1570 00156851
ER25 4.00-5.00 0.1570-0.1960 00156869
ER25 5.00-6.00 0.1960-0.2360 00156877
ER25 6.00-7.00 0.2360-0.2750 00156885
ER25 7.00-8.00 0.2750-0.3140 00156893
ER25 8.00-9.00 0.3140-0.3540 00156901
ER25 9.00-10.00 0.3540-0.3930 00156919
ER25 10.00-11.00 0.3930-0.4330 74243486
ER25 11.00-12.00 0.4330-0.4720 00156927
ER25 12.00-13.00 0.4720-0.5110 00156935
ER25 13.00-14.00 0.5110-0.5510 00156943
ER25 14.00-15.00 0.5510-0.5900 00156950
ER25 15.00-16.00 0.5900-0.6290 00156968
ER32 2.00-3.00 0.0780-0.1180 00156976
ER32 3.00-4.00 0.1180-0.1570 00156984
ER32 4.00-5.00 0.1570-0.1960 00156992
ER32 5.00-6.00 0.1960-0.2360 00157008
ER32 6.00-7.00 0.2360-0.2750 00157016
ER32 7.00-8.00 0.2750-0.3140 00157024
ER32 8.00-9.00 0.3140-0.3540 00157032
ER32 9.00-10.00 0.3540-0.3930 00157040
ER32 10.00-11.00 0.3930-0.4330 00157057
ER32 11.00-12.00 0.4330-0.4720 00157065
ER32 12.00-13.00 0.4720-0.5110 00157073
ER32 13.00-14.00 0.5110-0.5510 00157081
ER32 14.00-15.00 0.5510-0.5900 00157099
ER32 15.00-16.00 0.5900-0.6290 00157107
ER32 16.00-17.00 0.6290-0.6690 00157115
ER32 17.00-18.00 0.6690-0.7080 00157123
ER32 18.00-19.00 0.7080-0.7480 00157131
ER32 19.00-20.00 0.7480-0.7870 00157149
ER40 3.00-4.00 0.1180-0.1570 00157156
ER40 4.00-5.00 0.1570-0.1960 00157164
ER40 5.00-6.00 0.1960-0.2360 00157172
ER40 6.00-7.00 0.2360-0.2750 00157180
ER40 7.00-8.00 0.2750-0.3140 00157198
ER40 8.00-9.00 0.3140-0.3540 00157206
ER40 9.00-10.00 0.3540-0.3930 00157214
ER40 10.00-11.00 0.3930-0.4330 00157222
ER40 11.00-12.00 0.4330-0.4720 00157230
ER40 12.00-13.00 0.4720-0.5110 00157248
ER40 13.00-14.00 0.5110-0.5110 00157255
ER40 14.00-15.00 0.5510-0.5900 00157263
ER40 15.00-16.00 0.5900-0.6290 00157271
ER40 16.00-17.00 0.6290-0.6690 00157289
ER40 17.00-18.00 0.6690-0.7080 00157297
ER40 18.00-19.00 0.7080-0.7480 00157305
ER40 19.00-20.00 0.7480-0.7870 00157313
ER40 20.00-21.00 0.7870-0.8260 00157321
ER40 21.00-22.00 0.8260-0.8660 00157339
ER40 22.00-23.00 0.8660-0.9050 00157347
ER40 23.00-24.00 0.9050-0.9440 00157354
ER40 24.00-25.00 0.9440-0.9840 00157362
ER40 25.00-26.00 0.9840-1.0230 00157370
ER50 10.00-12.00 0.3940-0.4720 00157388
ER50 14.00-16.00 0.5510-0.6300 00157404
ER50 18.00-20.00 0.7080-0.7890 00157420
ER50 24.00-26.00 0.9440-1.0230 00157446
ER50 30.00-32.00 1.1810-1.2590 00157479
ER50 32.00-34.00 1.2590-1.3380 00157487

Collet Sets

Series Range of Set [inch] MSC Item #
ER11 13 Pc. Set 0.0200-0.2750 00405332
ER16 10 Pc. Set 0.0200-0.3930 00405340
ER20 12 Pc. Set 0.0390-0.5110 00405357
ER25 15 Pc. Set 0.0390-0.6290 00405365
ER32 18 Pc. Set 0.0780-0.7870 00405373
ER40 23 Pc. Set 0.1180-1.0230 00405381

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