hm... some days ago I forged a crowbar of 92cm/36.2in length.
the original material was a piece of 33cm/13in of that coil spring, probably of an earth mover, the length was still 52cm/20.5in although I had cut off some pieces before... toughest material, I tell ya... took me about 2.5h of sweating :D
I was pissed when my original crowbar of 180cm/70.9in, forged of a loco coil spring weighing 58kg/127.9lb, was stolen last year... I think I know the filcher but, as I was not totally sure I said nothing, instead, forged me this new one, even it is smaller... I need the leveraging effect of a crowbar to move heavier pieces of steel...