
Originally Posted by
rodb
That's a big jump from 5k to 12, you might need something in the 8k range as well.
If are just touching up your own razor, a Norton 4k/8k and the Naniwa 12k + the CrOx should do it. You could also sub a Chinese 12k for the Naniwa (keep in mind they can be variable, C12k)