Zirconia
Zirconia is tough and longer lasting than Aluminum oxide yet more affordable than other exotic abrasives such as Compact grain belts and are great for the rough grinding jobs such as profiling and starting out your bevels. I personally start with a 60 grit then move onto a 120 grit belt before changing to an Aluminium Oxide belt. Remember to keep your worn belts for the first grind on a blank. As the sharp edges on the blank will strip a lot fo the life form a new belt.
2 x 72 060 ZK713X 60 Grit $6.25 each plus tax
2 x 72 120 ZK713X 120 Grit $6.25 each plus tax
6 x 48 060 ZK713X 60 Grit $10.00 each plus tax
Compact Abrasives
Compact abrasives have a resharpening property that allows them to last longer and perform even cutting. I use these abrasives in the higher grit ranges as unlike Aluminium Oxide the Compact Abrasives are stacked and result in a thicker surface on the belt. The benefit to a thick surfaced abrasive is, unlike Aluminium oxide belts you don't get the interrupted skip of the splice joint between your blade and the platen. The compact abrasive allows for a smoother finish at progressively higher grits. The cost of the belt may be more but they do last much longer than your higher grit Aluminium Oxide belts.
2 x 72 400 KK772J 400 grit $8.30 each plus tax
2 x 72 600 KK772J 600 grit $8.30 each plus tax
2 x 72 800 KK772J 800 grit $8.30 each plus tax