Head Type: Mini Head Allowable Speed: 380,000 – 400,000 RPM Drive Air Pressure: 42 PSI or 3 Bar Burs: ISO1797-1 Type 3, 1.59 – 1.6 mm Diameter Optics: Cellular Glass Rod Head Size (Diameter × Height): 12.45 mm × 10.50 mm Weight: 55 grams Connection: KaVo MULTIflex LUX Type Power: 23 Watts