●Flower type brush which is easy to operate due to compact and high speed rotation, excellent in usability.●Flower type, optimum for polishing cylinder inner diameter and bottom crossing hole.●Working Tool: Variable speed type electric micro grinder.●Wire Diameter (mm):0.1●Bristle Material:Stainless Steel (304)●Outer Diameter x Bristle Thickness x Shaft Length x Shaft Diameter (mm):10 x 3 x 36 x 3●Max Working Rotation Speed (rpm):10000●Comments:Polishing of stainless steel, aluminum products.●Shaft: Brass●Air tools cannot be used.