Hiab and Grab, same thing?

Ok i need alittle help in clearing something up, I have a hiab ticket and cpcs registered as a lorry loader on my operators card, does the grab come under the same coding or is it different? I know i can operate a hook and block grab with it but does the clamshell bucket grab have an additional code, i have used all three before and all are very similiar in the way they operate, I was just wondering if anybody knew… cheers

Clamshell buckets and brick or timber grab have separate codes.

I was told that I couldn’t drive a grab on my licence.

Clamshell mate