I have an SDS and apparently it has a clutch, so might try that core drill to start with, cheaper that buying a load of big SDS bits and hopefully the lack of hammer action means less chance of cracking. If it fails it's not too much money wasted.
Ah I thought you were drilling smaller holes, not cores. Yeah don't hammer with core bits/diamond as it wrecks the bit (I am sure you know this already as an SDS user)
I have an SDS and apparently it has a clutch, so might try that core drill to start with, cheaper that buying a load of big SDS bits and hopefully the lack of hammer action means less chance of cracking. If it fails it's not too much money wasted.