Zirconium provides longer lasting discs whilst giving the user more rapid stock removal, saving time. 4x longer lasting than conventional abrasive. Suitable for wood, painted surfaces, metal and plaster. Rapid stock removal. Anti-clog technology. Open coating for excellent dust removal. Zirconium provides longer lasting discs whilst giving the user more rapid stock removal, saving time. Double bonded - resin over resin. Film backing for long lasting sanding and durability. Universal pattern for random orbit sanders - 125mm diameter, 8 holes. Trend Abrasives increase productivity, giving a high quality finish. Fits all main brand sanders: Dewalt, Makita, Metabo, Bosch and Milwaukee. PTDTREDIRABHLF40Z