45° surgical handpiece
The RIVER H401-M4 is a high-speed, air-driven handpiece with a 45° angled head. This specific angle greatly improves visibility and access in tight, posterior spaces.
Its triple-port irrigation system provides 360-degree bur cooling and flushes debris to prevent pulpal damage.
A built-in anti-retraction valve stops oral fluids from sucking back into the waterlines to ensure strict infection control.
Smooth ceramic bearings deliver speeds up to 420,000 rpm, while a bright LED illuminates the work area.
It is ideal for cavity preps, crown reductions, and surgical tooth sectioning where standard handpieces struggle to reach.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | RIVER H401-M4 |
| Head angle | 45° |
| Drive type | Air-driven |
| Connector | 4-hole standard |
| Head size | Standard |
| Speed range | 380,000 – 420,000 rpm |
| Noise level | < 70 dB |
| Water spray | Triple-port, 3-hole circumferential irrigation |
| Anti-retraction | 3-hole tri-seat check valve, zero-drawback system |
| Illumination | Integrated LED light |
| Bur locking | Push-button |
| Ball bearing | Ceramic |
| Material | Stainless steel |
| Autoclavable | Yes (up to 150°C) |
