METAL POLISHING PAD ItemTypeSpec.GritBore sizeRemarks SWMP-300Metal bond3.0"(75ø)#50-300045mmBuff(B&W) SWMP-400"4.0"(100ø)"15mm" #50.100.200.400.800.1500.3000.Buff(B&W) *QRS backing & Snail lock backing