Aluminum oxide semi-open coat, "X" weight cloth backing, bidirectional. European and American made. These general purpose belts are great for working with both wood and metal.
Zirconia coated polyester/cottn heavy-duty backing belts also available in 1"x42", 2"x48", 4"x36", and 6"x48" sizes. Zirconia is sharper than aluminum oxide and more durable than silicon carbide.
Sizes fit all standard portable sanders. Sold in packs of 10.