For clamping asymmetrically shaped wood. Clamping range with reversing jaws from 1.5 - 35 mm inside and from 14 - 67 mm outside. Easy to secure with M16 x 1 internal thread suitable for the main spindle of the DB 250. https://elecena.pl/product/25111134/27024-four-jaw-chuck-individually-adjustable-for-db-250 2024-01-29 https://elecena.pl/product/25111134/27024-four-jaw-chuck-individually-adjustable-for-db-250 2024-03-25