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These things are a pain to use. Especially the cheap ones require more force than you'd expect and occasionally get stuck. They make a good clean cut but it's so slow and awkward that if you were wanting to do vandalism they're impractical relative to a reciprocating saw or better yet portable band saw.

I also wouldn't underestimate the power of spray paint, even though it's simple to fix it's still expensive when the contract specifics all the maintenance must be done by flock themselves.