"D120 Varibore hex collets are to suit 54mm capacity collet chucks. Also known as V120, these collets have a 3.175mm range. Supplied smooth as standard we can supply with alternate finishes and in special profiles.\r\n\r\nD120 suit the following collet chucks:\r\n\r\nKlamp CRL54\r\n\r\nKlamp CRS54\r\n\r\nKlamp QCRL54\r\n\r\nCrawford CDC54\r\n\r\nCrawford CDC-54-S\r\n\r\nCrawford QC-54"