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ER Mini Collet Nuts - Type M

ER Mini Collet Nuts - Type M

ER Mini Collet Nuts are up to 6mm smaller in diameter than Type A or Type T1 collet nuts.

Code Size D L * Thread
050-110-11575 ER11 16mm 12mm M13x0.75
050-110-16575 ER16 22mm 18mm M19x1
050-110-20575 ER20 28mm 19mm M24x1

* Note: Mini collet nuts have a smaller thread diameter and are not compatible with collet chucks designed for Type A or Type T1 collet nuts.

Mounting ER Collets

Inspecting the inside of an ER collet nut reveals an internal flange that has been machined eccentric to the main axis of the nut. This is not a machining error but is designed that way to lock onto the groove of the collet and aid its release from the chuck body.

For this feature to work properly, the collet must be mounted in the nut first before fitting the assembly into the chuck body. To mount the collet in the nut, insert it on an angle, turn slightly and push it into the nut until it clicks into place on the eccentric flange. The cutter may now be fitted and the assembly tightened hard into the chuck body.

Fitting and releasing an ER collet

To remove the cutter, slacken and undo the nut until resistance is felt. Then, using a collet wrench, further undo the nut until the collet is released from the chuck body.

Removal of the collet from the nut is the reverse of the mounting procedure.

050-110-11575 ER11 Mini Collet Nut - Type M - M13x0.75 Thread £4.38 Excl.VAT
£5.26 Inc.VAT
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050-110-16575 ER16 Mini Collet Nut - Type M - M19x1.0 Thread £4.38 Excl.VAT
£5.26 Inc.VAT
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050-110-20575 ER20 Mini Collet Nut - Type M - M24x1.0 Thread £4.38 Excl.VAT
£5.26 Inc.VAT
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