Sometimes some models are too small to really get something done. Sometimes some models are loosers.Is this a trick question?
Yes, with a concrete blade it will cut concrete sidewalks, curbs or a number of other things that are concrete.
Likewise, it will also cut metal with a, well, a metal blade for thinks like rebar, flat stock or a number of other things that are metal.
Now if the piston and cylinder are scored/scoring, then it may not have enough power (assuming it starts), especially hot to cut anything.