6 in. Klingnet Disc, 240 Grit - Qty:50

KlingNet offers all the advantages of a conventional coated abrasive

It also has unparalleled dust collection possibilities and extended disc life.

Aluminum oxide is the familiar brown to reddish brown sandpaper that has become the standard for production woodworking. It is a synthetic abrasive that is very hard and tough, providing good abrasive life for both metal and woodworking applications.

Aluminum Oxide AO is formed by combining bauxite and other materials by firing them in an electric furnace.  The resultant mass is then crushed, and the pieces sifted through successively finer screens to assign a grit size (CAMI grading).When crushed, the resulting pieces are naturally pyramidal in shape.  Due to the shape and the strength of the materials used in its making, AO is a very durable grain.  The grain is worn down during use, sanding finer the longer it's used.   Users take advantage of this characteristic by using the belts on more than one machine (belt sanders or drum sanders) or application.  For instance, if you have two wide belt machines doing intermediate and finish sanding, respectively, you may use a 120 sanding belt on the first machine to do your intermediate sanding. When the cut for that application is no longer as sharp, the sanding belt can be moved to the 150 grit machine and used there till the cut for that application is no longer sufficient.  This ensures you get the most production and the full value for the belt you purchased. 

AO is very tough and durable, as stated above, and is used on bare wood, most metals (especially the steels), leather, and a wide variety of other materials. It is a great general purposes grain and probably the most, common grain seen today.