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 02115, Paper Sheet 346U, 80 D-weight, 9 in x 11 in, 7000120220
$0.94
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.

Dynabrade 78105 3" Dia. x 80 Grit A/Z DynaCut Locking-Type Disc, 2 Ply Cloth, 25/pack
3M 64926, Scotch-Brite Hand Pad 7447 PRO, PO-HP, A/O Very Fine, 6 in x 9 in, 7100023339, 20/Carton
Dynabrade 78410 3" Dia. x 1" W x 1/4" Shank, 60 Grit, A/O DynaCut Flap Wheel, 10/pack
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 87147, PSA Cloth Disc 777F, 5 x NH, 36 YF-weightt, 7010308524
3M 22409, Roloc Disc 361F, P120 XF-weight, TR, 1-1/2 in, Die R150S, 7000045103
Dynabrade 78328 3" x 1" x 1/4 Shank, 60 Grit, Dynabrite Interleaf Wheel, 10/pack
Standard Abrasives 78527, Ceramic Pro Type 29 Flap Disc, 645139, 7 in x 5/8-11 40 Y-weight, 7010301277
3M 19766, Utility Cloth Sheet 314D, 9 in x 11 in P240 J-weight, 7000000354
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
Dynabrade 79448 6" x 9" DynaBrite General Purpose Maroon Hand Pad, 20/box
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
ACS CX1250 Diamond Belts, 1/2" X 24" 45u
3M 57894, 642WY 1/4" X 24", 50000 Mesh Diamond Cloth Belt, 7100230570
Dynabrade 95848 Dynabrade Gear Oil
3M 30688, Cloth Belt 577F, 120 YF-weight, 3/4 in x 18 in, Fabri-lok, Single-flex, 7000119460, 200 per case
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052 
