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.

Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Dynabrade 14000 Dynafile Abrasive Belt Tool
3M 16580, Accuspray ONE Spray Gun System with Standard PPS, 7100099202
Standard Abrasives 701616, PSA A/O Disc, 12 in x NH, 50, 7010369977
3M 31663, Cubitron II Net Disc 80+/180+/320+, includes 6 in discs and sheets, Job Pack, 7100251881, 100 Packs/Case
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
3M 30290, Trizact Hookit Finishing Foam Sheet, 3000, 2-3/4 in x 5-1/2 in, 7100073981, 15 Sheets/Pack
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
Dynabrade 95848 Dynabrade Gear Oil
3M 05444, Stikit Hand File Board, 2-3/4 in x 16 in, 7000045763
Standard Abrasives 898000, Buff and Blend Combi-Wheel, 2 in x 1 in x 1/4 in A MED 60, 7010331222
3M 71512, Cloth Belt 340D, 50 X-weight, 3 in x 18 in, Fabri-lok, Single-flex, 7010294780, 25 per case
3M 66619, Cloth Belt 341D, 50 X-weight, 4 in x 24 in, Fabri-lok, Single-flex, 7010360692, 25 per case
3M 34574, Cubitron II Net Sheet Roll, 150+, 115 mm x 10 m, 7100247501, 6 Rolls/Case
3M 34566, Cubitron II Net Sheet Roll, 240+, 70 mm x 10 m, 7100247511, 6 Rolls/Case 
