This Centaur Precision Tools ER40/R8 Collet Chuck is designed to hold ER16 Collets and has an R8 Shank. Allows the user to change tools without removing the chuck from the spindle.
RDF / AF75 COLLET
RDO20 / High Grip Collet
RDF / AF50 Collet
ER40 Collet
ER16 Precision Collet for Professional Metalworking