3M™ Aluminum Oxide Rigid Grinding Discs

Aluminum Oxide A24 DC wheel sizes begin with a 4 mm thickness and are specially suited for mild steel grinding applications. 3M Grinding Discs provide high and consistent quality performance. They are available in 4” (4mm, 6mm thick), 5” (6 mm thick), 7” (6mm thick) and 9” (6mm thick); Grade 24