And how long do the blades last when cutting steel plate?Wrong tool for the job. What are you trying to do this time?
Makita do a cordless circ saw that will cut thick steel, very impressive. The way a nibbler cuts would be extremely tough work for the punch and die for thicker metals.
What exactly are you trying to do ?A nibbler that cuts 4mm thick mild -
120-200 quid ish for one
The only one I can find that cuts 5mm is a Fein one for 2 grand!
Why is this?
Surely that extra mm isn't worth 1800 quid.
Or is there a cheaper 5mm one that I haven't found yet?