Genuine Binzel WP17 Collet - 10N21 - 0.5mm Collet
This collet is suited to the WP17 standard collet body setup and is intended for use with 0.5mm tungsten electrodes.Noz-Alls The part number 10N21 is universally used by most manufacturers and should be a like for like replacement regardless of the brand you currently use.
Genuine Binzel parts my cost slightly more in comparison to cheap alternatives but should last longer and cost you less in the long run.
Sold per piece. Please ensure you have the suitable collet to match the collet body.