7pcs/set brass drill chucks collet bits 1-3.
2mm shank screw nut dremel rotary tool specification: color:gold material: metal overall length:17mm/0.
66 diameter of shank:4.
89 clamping diameter:1mm,1.
6mm,2mm,2.
4mm,3mm,3.
2mm durable and practical compatible with most of rotary tools used in hardware,hobby,home,etc suitable for installation inside diameter of less than 4.
8mm drill,electric grinding,hanging mill,hose above package include: 6 drill chucks collet 1 x screw nut label: yes.