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 02116, Paper Sheet 346U, 60 D-weight, 9 in x 11 in, 7000120221
$1.11
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.

3M 16582, Accuspray Atomizing Head, Blue, 1.2 mm, 7010363219
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 27468, EMI Copper Foil Shielding Tape 1181, 1 in x 18 yd (25,40 mm x 16,5 m), 7000132169
3M 03890, Adhesive Transfer Tape Extended Liner 920XL, Translucent, 3/4 in x 1000 yd, 1 mil, 7000001155
3M 25125, Scotch-Weld Threadlocker TL71, Red, 1 mL Pipette, 7010330204, 100/case
3M 36879, Self-Stick Liquid Protection Fabric, Blue, 28 in x 300 ft, 7100169496
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M 62612, Scotch-Weld Threadlocker TL71, Red, 10 mL Bottle, 7100039197, 10/case
3M 08025, Adhesive Sealant 740 UV, Black, 600 mL Sausage Pack, 7100057385, 12/Case
3M 76625, Roloc Disc 777F, 80 YF-weight, TR, 1 in, Die R100N, 7000045621
3M 69455, Cloth Belt 777F, 50 YF-weight, 3 in x 132 in, Film-lok, L-flex, 7010365062, 25 per case
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
Dynabrade 15420 Dynafile III Abrasive Belt Tool
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 25140, Scotch-Weld Threadlocker TL43, Blue, 250 mL Bottle, 7100039221, 2/case
Insize 4102-181, STEEL GAGE BLOCK SET, 81pcs, grade AS-1, 6928640329906
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
3M 26582, Accuspray Refill Pack for PPS Series 2.0, Blue, 1.2 mm, 7100152952
Standard Abrasives 713296, Aluminum Oxide Handy Roll, P320 J-weight, 2 in x 50 yd, 7100034517
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
ACS Flap Disc, Type 29 (Curved) Full Diamond 4-1/2 X 5/8-11 60M, 333.FD4.5-60/T29
3M 20230, Scotch-Seal Metal Sealant 2084, Silver, 5 Gallon Drum (Pail), 7000046344
Dynabrade 30420 Housing
3M 57333, Impact Resistant Structural Adhesive, 450 ml DMS Cartridge, 7100050352, 2per case
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M 20931, PSA Cloth Disc 348D, P100 X-weight, 1 in x NH, Die 100N, 7000118915
3M 84584, Cloth Belt 777F, 50 YF-weight, 3 in x 264 in, Film-lok, Single-flex, 7010309169, 5 per case
3M 28120, Hookit Clean Sanding Disc 900DZ, 5 in 60 J-weight, Die 500LG, 7010326613 
