Dee Randall wrote:
> http://fantes.com/images/2857ice_utensils.jpg
>
> http://fantes.com/images/12112chocolate.jpg
>
>
>
> 73.5% El Rey chocolate -- using the above chipper and grater, serrated
> knives, nothing did the job even using DH's gorilla tactics.
>
> The chocolate was a year old and I've used 99% chocolate, but this beat
> all!!! Hard as a rock.
>
> Dee Dee
>

If a serrated bread knife doesn't work try a small hand saw or hack saw.