National HELIX 16" Planetary Floor Grinder HELIX 16" floor grinder is designed for smaller concrete grinder jobs with hard-to-reach areas. The planetary grinder head will create the perfect profile for new concrete coatings. This user-friendly floor machine features an adjustable handle and a floating dust skirt for increased efficiency when grinding. Features Able to do edge grinding within 1/2" of the wall on either left or right side of the machine by a simple adjustment of the dust skirt Grinding head contours to the floor with a floating tooling assembly Floating tooling assembly can rotate 180° for easy tool changes Removable weights can increase grinding pressure Dual-speed motor can operate either high- or low-speed depending on the application Handle is fully adjustable for comfortable use Equipped with an LED light to illuminate the surface directly behind the grinding head Quick-release levers allow the handles to be removed for easy transport and storage One year manufacturer's warranty on parts and labor What's Included? National HELIX Planetary Floor Grinder 3x Magnetic Tooling Holders (404021) 3x Velcro Adapters (9245) Floating Dust Skirt (403231) Helix Grind and Scrape Plate (402757) Operator's Manual National HELIX Planetary Floor Grinder Specifications Motor Single Phase - 120 V Electric Power 1.5 hp Disc Size 16" Drum RPM High Speed: 291/163 RPM (for 60 Hz)Low Speed:243/136 RPM (for 50 Hz) Motor RPM High Speed: 2300/1800 RPM (for 60 Hz)Low Speed:2667/1500 RPM (for 50 Hz) Grinding Pressure 128 lb. Amps 12 amps Dimensions 47" x 17.5" x 47.6" (with handle) Weight 206 lb.