3M 88591 Sandpaper, 11 in L, 9 in W, Coarse, 60 Grit, Aluminum Oxide Abrasive, Paper Backing

3M Paper sheet 346U is constructed of aluminum oxide and comes in a range of grades and sizes to accommodate many different projects. The paper backing is durable for coarse sanding, yet flexible enough to be used on curved surfaces. Its cut rate and durability make this an excellent choice for blending the joints of connecting pieces in wood and metal working.