Diamond abrasive brush 1.Polishing granite surface into leather-look . 2.Type: Frankfurt ,Fickert and Round 3.Grit:30# - 500# Diamond abrasive brush ◊ Product description: 1.For polishing the granite surface into leather-look or producing antique look on the granite slab2.Adopt the diamond-impregnated filament.3.Type of brush: Frankfurt ,Fickert ,and Round,4.Grit:30#, 40#, 60#, 80#, 120#, 180#, ...