#05 120/150 Grit:
Least aggressive high grit double bar used to remove scratches from the Black Line 04 hard bond. Hard bond is designed for long life on soft concrete.
#04 60/80 Grit:
Lesser aggressive medium-high grit double bar. Great for the first cut on soft hardness concrete or to follow the Black Line 03. Hard bond is designed for long life on soft concrete.
#03 30/40 Grit:
Aggressive medium grit double bar used for first cut or to follow the Black Line 02. Hard bond is designed for long life on soft concrete.
#02 16/20 Grit:
Very aggressive medium-low grit double bar used to remove shaver lines, mastics, thin set, or prep the floor for coating adhesion. Hard bond is designed for long life on soft concrete.