●Easy to mount/replacement with the shaft.●Umbrella type brush that is easy to operate due to compact and high-speed rotation, excellent usability.●Since it is an umbrella type, it is optimum for polishing cylindrical inner diameter and bottom part.●Working Tool: Variable speed type electric micro grinder.●Wire Diameter (mm):0.12●Bristle Material:Hard Steel Wire●Outer Diameter x Bristle Length x Shaft Length x Shaft Diameter (mm):15 x 8 x 36 x 3●Max Working Rotation Speed (rpm):10000●Comments:Delamination and grinding of metal products●Shaft: Brass●Air tools cannot be used.●Please use below The maximum working rotation speed. Please wear protective equipment to use safely.