D185E spring collets, formally known as 4291, are to suit 2nd operation of finishing ops. Normally size for size to prevent marking of the component they are available in .5mm increments and imperial sizes. Specific sizes available on request. Suitable for long series collet chucks.
D185E suit the following collet chucks: Klamp CRL60
Klamp QCRL60
Klamp QDCRL60
Crawford CDC-60
Crawford QC-60.