Cubitron II 969F from 3M Products

The 3M Cubitron II 969F Flap Disk is suited for metal grinding and finishing, thanks to its unique design and abrasive material. 

This disc features a grinding aid, which runs cooler and helps prevent discolouration on metal surfaces while its semi-flexible, Y-weight backing gives each flap increased strength. This is what makes the 969F an equally durable and versatile abrasive disc.