PanaAir FX offers much more endurance and power than previous models, while being just as easy to handle. Its sleek design provides maximum visibility of the operating field, easily reaching all areas of the oral cavity. The adapter is designed for any M4/B2 Air-Turbine. Easy installation on the tubing of the dental chair with M4 / B2 direct connection Air-Turbine make it easy to utilize for dental professionals. Just connect the adapter between the Air-turbine and tubing of the dental chair. The adapter is designed to be autoclavable up to135℃. Speed : 310000 – 410000 RPM. Head Size : ø12.5 x H13.4 mm.