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.

3M 40196, Cloth Spiral Band 341D, 80 X-weight 1-1/2 in x 1-1/2 in, 7100138151
3M 33056, Scotch-Brite Radial Bristle Brush Replacement Disc T-C 120 Refill 6 in, 7000021285, 40/Pack
3M 30189, Trizact Hookit Foam Sheets, 5000, 2-3/4 in x 5-1/2 in (70 mm x 140 mm), 7000120137, 5 sheets per carton
3M 05742, Hookit Soft Hand Block, 2-3/4 x 5 in, 7000045436
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
3M 77197, Scotch-Brite™ Roloc™ Deburr and Finish PRO Unitized Wheel,TR, 3 in x 1/8 in x NH, 8C CRS+, 7100109130, 40/box
3M 26109, PPS Series 2.0 Adapter, Type S23, 1/4 Female, 18 Thread NPS, 7100135941
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 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 45709, Cubitron II Hookit Cloth Disc 947A, 80+ X-weight, 6 in x NH, Die 600Z, 7100113080
3M 45717, Cubitron II Hookit Cloth Disc 947A, 80+ X-weight, 5 in x NH, D/F 5HL, Die 500FH, 7100113111
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
Norton 63642507156 - 3" X 1/2" X 1/4" Unified Diamond Wheel, 20 Each
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 14000 Dynafile Abrasive Belt Tool
3M 82618, Rubber and Vinyl Spray Adhesive 80, Yellow, 24 fl oz Can (Net Wt 19 oz), 7000028604, 6/Case
Standard Abrasives 531202, Quick Change Aluminum Oxide Resin Fiber Disc, 24, TN, Brown, 7 in, Die TN700BB, 7010369490, 25/case
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M 34576, Cubitron II Net Sheet Roll, 220+, 115 mm x 10 m, 7100247509, 6 Rolls/Case 
