Bosch Concrete Surfacing Grinder Exclusive Dust Protection System Perfect for concrete surfacing such as de-burring and refurbishing Also ideal for smoothing floor pavement and removing graffiti, weather worn paint Model Number: 1773AK Amperage: 10 No Load RPM: 11,000 Wheel Diameter: 5" 10 Amps; 11,000 RPM Lock-on/off switch For extended use applications Double sealed ball bearings and two "lip-sealing" protective rings Added protection against dust contamination Constant ResponseTM Circuitry Provides soft-start, maintains constant speed under load, provides overload protection Automatic restart protection Protects against automatic restart after a power failure. Ensures that tool is intentionally powered on each time. Sealed switch Keeps debris out of the switch mechanism and extends switch life Service MinderTM light Indicates when preventative maintenance is required 5/8" - 11 spindle Wide flexibility for mounting most popular accessories Epoxy coated field windings Provides ultimate protection against abrasive dust and debris Wrap around auxiliary handle For easy handling Spindle lock For quick wheel changes Double Insulated, UL listed, complies to OSHA Includes: Auxiliary Handle -- 3 601 303 017 Flange Kit -- 3 600 210 125 Spanner Wrench -- 1 607 950 043 5�� Diamond Cup Wheel -- DC510 Vacuum Adapter -- VAC002 3 Extra Brush Rings -- 2 600 290 026 Carrying Case -- 3 605 438 057