Details Bosch Power Tools deliver stronger performance and lasting reliability. The Bosch 1900 series 7″ and 9″ grinders are redefining innovation. The line is powered by A new, ultra-efficient 4 HP motor. It utilizes the best vibration control system on the market. If that isn’t enough, they are also the lightest large angle grinders available, weighing up to 20% less than any comparable competitive model. Standard Equipment: (1) 9″ Angle Grinder (1) Vibration Control Side Handle (1) Quick Adjust Wheel Guard (1) Grinding Wheel Flange Kit (1) Spanner Wrench Optional Accessories: Grinding Accessories Specifications: Rating: 120 V Amperage: 15.0 Wheel Diameter: 9″ No Load RPM: 6,500 Spindle Thread: 5/8 -11 UNC Weight: 11.8 lbs Features: Maximum power at minimum weight up to 20% lighter than comparable tools Patented vibration control with soft grip reduces vibration by up to 50% Durable and reliable manufactured with highest quality, resonance reducing components Quick adjust guard system quickly adjusts and locks in place for added protection Epoxy coated field windings provides ultimate protection against abrasive dust and metal debris Service minder brushes eliminates guesswork, stops tool when preventive maintenance is required Tri-metal switch design helps prevent accidental start ups Removable brush covers for easy brush replacement AC/DC compatibility extends tool versatility to DC outlets such as welders and generators