Part Number A1504 – 040 through A1504 – 312 (see chart for details)
A collet is needed for each different diameter electrode. All collets fit into the spindle adapter and are held secure by the chuck lock nut. Electrodes larger than .312 diameter come with a 2″ shank that will adapt to the A1504 -312 collet. Please note your Electrode and collet will be the same size.