Very high density Scotch-Brite™ Pad is super aggressive for quick stock removal Durable construction withstands extremely heavy use on the toughest surfaces Performance similar to steel wool grade 4 without shredding, rusting, or splintering May be used by hand, with a hand pad block, or on an in-line sander The Scotch-Brite™ Heavy Duty Hand Pad is the most aggressive and durable Scotch-Brite™ Hand Pad. Its super dense construction makes it an excellent choice for your heaviest cleaning, deburring, and finishing applications.