Silverline Filament Wheel 75mm Coarse

Amazon

Nylon threads impregnated with coarse silicon carbide grit For deburring and surface treatment of metal and wood Non-sparking 6 mm shank Max 4500rpm, Weight: 0.08 pounds, Manufacturer: SLTL4

Electrical World

Nylon threads impregnated with silicon carbide grit for deburring and surface treatment of metal and wood. Non sparking. 6mm shank.