There have got a level mechanism on the handpiece body,It can help you open it quickly and smoothly. This handpiece allow you change out accessories (Such as burs, bits, drills and cutters etc. with) easily. This item also with the features of low vibration and slowly heating when working,Suitable for grinding, drill, mill and other supporting use. You do not need to use key or pin or wrench,Just a momentary interruption in your work. Common used in processing of Jewelry and crafts,Adopting high quality metal material, smooth surface,Cabinet and delicate and comfortable using., Manufacturer: Basage