Words to Describe handpieces

How handpieces often is described ("________ handpieces")

• modern
• high
• turbine
• clean
• most
• ultra
• ultrasonic
• speed
• powered
• conventional
• surgical
• reciprocal
• automated
• cooled
• bearing
• disposable
• endodontic
• driven
• dental
• sonic
• autoclavable
• straight
• special
• rotary
• standard
• electric