80 grit, 220 to 280 grit, and 320 grit? This doesn't seem right. All these grits are pretty coarse, unless there's a zero missing. Sharpening knives takes time. If you're in a hurry and don't mind taking off a lot of metal, as these low-grit stones will, get an electric grinding wheel.
Below is a video from Serious Eats. J. Kenji Lopez-Alt recommends the following set-ups:
- One-stone budget plan: 1,000 to 1, 200 grit
- Two-stone plan:...