Aluminum oxide is a very hard mineral that maintains sharp points on the grains much longer than natural abrasives such as emery or garnet. The abrasive grains are adhered to the sandpaper with some space between them, known as open-coat construction, to minimize the buildup of dust on the surface of the paper, which would otherwise load the abrasive points. Loading often results from sanding soft materials and can clog the abrasive, shortening the usable life of the sandpaper sheet.
3M 02117, Paper Sheet 346U, 50 D-weight, 9 in x 11 in, 7000120222
$1.29
Factory Stock, 7-10 Day Leadtime
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.

Standard Abrasives 78509, Ceramic Pro Type 27 Flap Disc, 645103, 4-1/2 in x 5/8-11 40 Y-weight, 7010310618, 10 per case
3M 34552, Cubitron II Net Sheet Roll, 150+, 80 mm x 10 m, 7100247337, 6 Rolls/Case
Insize 4142-200, GRANITE SQUARE WITH V GROOVE, 7.9x7.9x7.9", 6928640375538
3M 98514, Premium Matte Cloth (Gaffers) Tape GT2, Black, 48 mm x 50 m, 11 mil, 7010336132
3M 34576, Cubitron II Net Sheet Roll, 220+, 115 mm x 10 m, 7100247509, 6 Rolls/Case
3M 34562, Cubitron II Net Sheet Roll, 120+, 70 mm x 10 m, 7100247498, 6 Rolls/Case
3M 17228, Heavy Duty Duct Tape DT11, Black, 48 mm x 54.8 m, 11 mil, 7100158377
3M 02593, Stikit Gold Sheet Roll, P240, 2-3/4 in x 45 yd, 7000028244
3M 34554, Cubitron II Net Sheet Roll, 220+, 80 mm x 10 m, 7100247496, 6 Rolls/Case
3M 47192, Polyurethane Adhesive Sealant 550FC Fast Cure, White, 600 mL Sausage Pack, 7100198000, 12/Case
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 24339, Scotch-Brite EXL Unitized Wheel, XL-UW, 3S Fine, 6 in x 1/4 in x 1 in, SPR 20888A, 7010365120
3M 75951, 663FC 1" X 30", 20u Diamond Trizact Belts, 7100210975
3M 30289, Trizact Hookit Finishing Foam Sheet, 5000, 2-3/4 in x 5-1/2 in, 7000120135, 15 Sheets/Carton
3M 34555, Cubitron II Net Sheet Roll, 240+, 80 mm x 10 m, 7100247339, 6 Rolls/Case 
