The combination of 2000 and 5000 grit stones allows for precise maintenance that goes beyond a simple initial sharpening. While the 2000 grit side provides a fine finishing touch, leaving the knife already very sharp, the 5000 grit side is used to polish the edge and remove the burr. Compared to coarser stones, this removes significantly less material, which extends the lifespan of high-quality blades and creates an extremely fine, long-lasting sharpness and a smooth finish.