Model 3383N90 and N92 mills are powered by a 3/4-hp, belt-driven, totally enclosed motor for quiet, efficient operation. Model 3383N95 mill has a direct-drive (10,000 rpm, full load) 1/2-hp motor directly coupled to the impeller. Includes three 120 mL sample bottles with snap caps, two hex keys, 0.5 mm screen, antistatic solution and clean-up ...