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 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
3M 66165, Wind Protection Tape Edge Sealer W2600, 50 ml (1.7 fluid ounce), 7100008766, 12/Case
3M Dirt Trap Material Dispenser, 7100003285
3M 20910, PSA Cloth Disc 348D, 60 X-weight, 2 in x NH, Die 200P, 7000118872
3M Super Abrasives Roloc Disc, 2" Type-R, Medium AO High Strength, Box of 50
Scotch-Brite 924, Surface Conditioning Disc Pad Holder, 4 in x 1/4 in, 7000120561
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M 17228, Heavy Duty Duct Tape DT11, Black, 48 mm x 54.8 m, 11 mil, 7100158377
3M 86745, Diamond Disc, 2" Roloc, 674W, 120 Mesh, TR, 7100022116, Box of 10
Standard Abrasives 78525, Ceramic Pro Type 29 Flap Disc, 645134, 4-1/2 in x 7/8 60 Y-weight, 7010331465
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
3M 26132, PPS Series 2.0 Adapter, Type S37, 5/8 Male, 11 UNC Modified, 7100135949
Dynabrade 61420 Raptor Vac Electric Portable Vacuum System
Dynabrade 92115 1/2" W x 12" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
Dynabrade Nitro Series EB3 - 3" Extended Buffer
3M Dirt Trap Protection Material Applicator, 36865, Floor Model, 1 per case
3M 9450, Disc Pad Holder 917, 7 in x 5/16 in x 3/8 in 5/8-11 Internal, 7000028549
Dynabrade 94980 1/4" Composite-Style Coupler, 1/4" Male
Dynabrade 78424 4-1/2" Dia. x 3/8" Medium DynaBrite Surface Conditioning Disc, 25/pack
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™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
3M 16583, Accuspray Atomizing Head, Green, 1.3 mm, 7010309279
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
3M 31381, Cubitron II Hookit Marine Sanding Abrasive Disc 737U, 31381, 6 in, 120+, 7100062433
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case 
