... 120 phenolic Textolite material, bearing 200 ~ 250Kpa air pressure, the speed of up to 300 000 ... Rotating speed 350,000-450,000 rpm under air-pressure of 200-250Kpa*Working life about ... handpiece, such as KAVO,NSK,W&H,BIEN AIR, MIDWEST,STAR,FARO,ADEC,SIEMENS,LARES,etc. ... , KAVO, Midwest, Star Dental, Bien Air, MK Dent, Siemens, Lares, Dabi-Alanle, Impact Air, Vector, Yoshida, MTI, Canister, Castellini3 ...