GRINDING HARDENED D-2

I have some Simmonds D-2 joiner and planer blades, that are hardened. If I choose to grind this steel in the hardened state, which type belts and grits would be recommended. I will be making small 3-4 inch working knives, with a 400 grit finish.Your comments and advice are appreciated.
KEN (WWJD)

Ken, in my experience the same belts that work well for annealed steel work well for hard steel.

Ya, you just need more of them!!

Ken, I grind all my knives after they are heat treated. I use a lot of D-2. The best belts I've found so
far is the 3M Cubitron. Using 50 grit, I can get about 5 to 6 blades (3" to 4" blade length). That's
when I use the flat platen, when hollow grinding, I get to 8 blades.

Stay Safe,
A.T.

Thanks, and I appreciate your replies.
KEN (WWJD)