The rebar is a great concept but (allot) of room for improvement.
1 I had the same problem as you.
2 bad quality such as rattling back lock.
3 bad designed saw and file, they could have used the blast file and saw. Stronger and longer and doesn't have those annoying cut outs.
4 knives where to thin.
5 the v shaped edge in the begin of the tools on the out side to accommodate the back lock.
Overall I think the blast was better.
My saw broke. I think that of there was not a hole in it out wouldn't have broken
i hack the hell out my Rebar.. hahaha NOTHING WRONG NOW..