MOKO TN45K LEDSpecificationsHead: Standard 45 Surgical headMaterial: TitaniumRPM: 320,000-400,000 min01Head Size: Ø11.2 x H 14 mmNoise level: Less than 65DbSpray : 4 port-sprayFeaturesCarbide-made SpindlesGerman Ceramic Ball BearingsAir-pressure Regulation