RMH3 Dental A2 LED Push Button High Speed Turbine Handpiece with Triple Water Spray, 4-Hole Connection. Torque head, spindle initiative patent, Integrated head and exposed cartridge. Autoclavable up to 135°F, working pressure: 0.28-0.3 Mpa, speed: 300,000-350,000rpm, water flow: 60-90 min/ml, noise: less than 65dB, head diameter: 12.5mm, height: 13mm.