Sorry for the slight spoilers for a 50 year old short story below: Larry Niven's "The Hole Man" dealt with a weaponized black hole, much as described in this a

Sorry for the slight spoilers for a 50 year old short story below: Larry Niven's "The Hole Man" dealt with a weaponized black hole, much as described in this article. I also imagined this was going to be about keeping black holes just above the evaporation mass, and then starving them out before launching them at a target, so they "detonate" right as they arrive.