The Sabra OMS series hand piece is designed for best access to 3rd molars. Its rear exhaust design vents the air back into the dental unit, away from the oral cavity. Recommended by Oral Surgeons Rear exhaust - No Air jet into operative site The highest torque hand piece of its kind Quick connect swivel type hand piece Light weight & well balanced Quiet- 54.3 decibels- The quietest air driven hand piece in Dentistry Easy to maintain with the Sabra Care Plus Lube Kit See hand piece couplers, as most Sabra hand pieces are quick connect type hand pieces and require a coupler to attach to your dental unit.