That hack saw style power tool seemed interesting, kinda curious if there would be a way to cut long wise rather than just the ends though...really wanting a way to cut a 3 inch wide slab in 1 swipe, with a consistent cut for minimal lapping. But making hones need a way to cut out the 3 inch slab first...then cut it to shape.

Basically, need a way to slice out a rough hone efficiently from a large/larger rock...

Then an efficient way to cut it to shape with a minimal amount of lapping