Rich accessory: 4 nozzles of size 3/32", 1/8", 5/32" and 3/16". They are applied to various sizes of rivets. Easy to install and open: Easily install the power rivet adapters on cordless or corded drills. 2 wrenches can open the head easily when stuck. Convenient and labor-saving: Unlike the traditional riveter, the insert nut is lower noise, more efficient, tasks so easy when connected to a drill, reducing user fatigue. Wide Use: Compact size and weight for industrial fastening areas. Applicable to all types of sheet metal, pipes. Contents: 1 riveter adapter, 2 keys, 4 nozzles.