Knife edge aluminum oxide (corundum) sunburst disc, diameter 22, grit 220

sunburst knife-edge brushes, 22 mm in diameter, are designed to reach extremely tight areas, internal corners, grooves and intricate profiles on precious and non-precious metals, resins, glass and stones. their thin, sharpened edge allows precise work without scratching adjacent surfaces. they mount on the same 2.35 mm or 3 mm mandrels used for radial discs and provide cool, controlled cutting and compound-free polishing.