This afternoon I tried to flare SST brake line with a KD tools flaring tool set that I picked up from NAPA (about $50). It looks like a quality tool, but it wouldn't grip the tubing. Instead, when I tried to flare the tube would push out of the tools instead of bending into a flare. Is it a bad tool or is SST just that hard to bend? Is KD a good brand in general? Thanks, Ed PS- This tool has worked well on many other occasions to flare plain steel tubing. This is the first time I've ever used SST with this tool.