Made of rubber and emery material, these bristle discs features good elasticity and toughness, wear resistant and durable.
For metal fine finishing, cleaning, polishing, grinding, deburring, removing rust and scratches.
50#, 80# grit for polishing hard metal, 120# grit for polishing aluminum.
1/4 inch shank fits most of electric drills.
Easy to install and use, convenient and fast.