Aluminum oxide grit, bonded on paper backing, provides excellent results in sanding and smoothing. The backing is flexible enough to allow accessibility to hard to reach places. Use a 3/32" screw top mandrel (#43.128).
ALUMINUM OXIDE is widely used as a coarse and fine abrasive. The most common form of aluminum oxide is called corundum. Due to its hardness, it is a much less expensive substitute for industrial diamond abrasives. Its low heat retention makes it ideal for grinding.