Beyes AirLight M200-45/M4 Non-Optic Handpiece For Midwest 4 Hole Connection Product Description: Products Model: HP2010, M200-45/M4 Manufacturer: Beyes Features: 45° Head design for perfect access to the molars. Triple Water Jet stream water (not mist) for perfect bur cooling and visibility. Rear air exhaust to prevent contamination into cutting area. Strong chuck holding force to prevent slippage and improve power with 20W torque. Quiet operation