- 1:1 Contra angle with led. Japanese ceramic bearing: - Longer lifespan. - More durable with e-generator. - More focused and brighter light. Internal water spray: - More precise and more convenient. - Detachable head part. - Easy for maintenance. - Gear ratio:1:1 Direct drive max. - Rotation speed (motor):40,000min-1. - Water spray: single water spray. - Light source: LED e-generator. **For further product information, please contact Chat Support**