In article ,
"HeyBub" wrote:

Commish wrote:
I have some big slates rescued from a demolition project in my yard.
They are about 3' by 4' and about an inch thick. I'd like to re-
purpose them but I need them smaller than that size. If I could break
that large slate into 4 smaller ones, I'd be thrilled.

How hard is this? What tools would I need? And how would I go about
doing this?

Thanks.

I'd try a cheap HF angle grinder with a mess of masonry blades. If it
doesn't work, you're only out about $30.

Well, and an eye and a couple of fingers, maybe. The blade *could* fly
apart and sever the jugular, but that's unlikely. Would make an amusing
youtube video, though.