Flat type brush that is easy to operate due to compact and high-speed rotation, and has excellent usability.Polishing of fine parts.Polishing of fine grooves.Corner adjustment.Polishing of uneven areas.Polishing of pipe's inner side.Working Tool: Variable speed type electric micro grinder.Wire Diameter (mm):0.10Bristle Material:Hard Steel WireOuter Diameter x Shaft Length x Shaft Diameter (mm):23 x 40 x 3Max Working Rotation Speed (rpm):15000Comments:Delamination and grinding of metal productsShaft: Free-Cutting Steel