NEW PRECISION BALANCE ER20 COLLET NUT TOOL HOLDER COLLET NUT

Collet Nut holds all ER20 collets. BALANCE COLLET NUT G2.5 20000RPPM. Our ER20-B Wrench works on this collet nut. Internal cam removes collet when unscrewed. This nut is a bearing nut and has internal ball bearings.