3M’s Ceramic Purple Abrasives are excellent for sanding and finishing wood, metals and other materials. This Cubitron ceramic aluminum oxide mineral sharpens itself with use. Once initial grinding wears the grain flat, it fractures along micro cracks creating new cutting edges. This process repeats itself throughout the entire grinding process. These bands have a 2 to 4 times longer abrasive life than traditional aluminum oxide bands and discs. Faster stock removal with less heat and loading. Use with mandrel A-SD145 mandrel. Made in USA.
Small Ceramic Sanding Bands 1/4″ x 1/2″
10,000 RPM Max Speed. *Optimum Operating Speeds are much lower (between 25%50% of maximum speeds) and also depend on the type of work piece.
Purple Ceramic Sanding Bands come in packages of 10 bands. Available in 80, 120 and 220 grit.
The large cones fit into a split-tapered mandrel #M20. The small cones fit onto a threaded mandrel #M100. They are all quick and easy to change, and the wrapped-paper design exposes new grit as the cones wear down.