Mini Brass Collet Chuck Set for Rotary Tools 7 or 12 Pieces Including Multiple Sizes

Mini collet set for rotary tools, model QST-Y5, compatible with bit diameters from about 0.02 in to 0.13 in (0.5-3.2 mm). The set is customizable and intended for metalworking drilling; it meets CE standards. Use with appropriate rotary tool chucks and follow safety guidance for metal drilling.