3'' Electr Mini Bench Grinder Polisher Flex Shaft Powerful grinder with motor rated at 110 Volts ,60 Hertz Speed can be changed from 0 to 10,000 rpm, rotations per minute Includes: 3'' grinder stone, 3'' fiber wheel 1/8'' mounted stone bit Flex shaft collet: 1/8-inch , wheel arbor: 10mm Quantity: 1; Over All Dim: 8-3/8''L x 4-5/8''W x 6''H