Rated air-pressure: 180-245Kpa rotate. Speed without load: > 350000r/min. Clamping means of bur: Push button. Applicable bur: 1.6mm, and should be conformed ISO standard. Means for sterilizing: prevacuumizing, autoclave at 135. Spray: single both air & water. Durable fastidiously request for designation, technology and materials. These charges are the buyers responsibility. Please leave us a.