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.

3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 95848 Dynabrade Gear Oil
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Standard Abrasives 41460, Aluminum Oxide Overlap Disc, 715803, 120 Grit, 1 in x 8-32 x 2 Ply, 7100092203
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M 76630, Roloc Disc 777F, 50 YF-weight, TR, 2 in, Die R200P, 7000045627
Dynabrade 51301 .5 hp Straight-Line Die Grinder
Standard Abrasives 32920, PSA A/O Disc, 708027, 6 in x NH, 120, 7100083004
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 25705, Scotch-Brite Roloc Surface Conditioning Disc, SC-DR, A/O Medium, TR, 3/4 in, 7000120983, 200/case
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
3M 04281 Scotch-Brite Surface Conditioning Belt, SC-BS, A/O Very Fine, 4 in x 132 in, 7010292398
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 17528 Scotch-Brite Surface Conditioning Low Stretch Belt, SC-BL, A/O Very Fine, 1-1/2 in x 60 in, 7010292405
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 20350, Hookit Clean Sanding Low Profile Disc Pad, 3 in x 1/2 in x 1/4-20 External 3 Holes Red Foam, 7000028147
3M 25143, Scotch-Weld Threadlocker TL77, Red, 50 mL Bottle, 7100039225, 10/case
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
Dynabrade 95361 Hose Assy., 1/4" I. D. 5' Long
Dynabrade 78122 2" Dia. Medium NWN DynaBrite Locking-Type Disc, 25/pack
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919 
