Type : Wet use Application : Natural and Engineered Stone , QuartziteArbor : 5/8"-11TMachine : Hand grinder, Hand saw Fast polishing speedSuperior finish 1500 - 5000 RPMCan be used with floor machines and hand polishersMetal Chip Pad with BackerAvailable option Item number Products S404BP430 4" (30Grit) S404BP450 4" (50Grit) S404BP4100 4" (100Grit)