I've not figured out the trick to "easily" remove the cinch clamps, nor have I ever seen a tool specifically for this. I've used a die grinder before, when I just needed the fitting, and one time a flat heat screw driver, where I needed to not damage the tubing. I did get them off, and reused some of the fittings, but it wasn't extremely easy. I have a tool to cut the other crimp style that requires a go / no go gauge, but I like the cinch ones way better.
John and Rebecca Dickson
Emma-7 / Little John-5 / Iva-1
Full Timing Again, Rev B
2013 Ford F-350 Lariat CC LB PSD
2015 SOB TT - With OC's Awning Poles (#8)
At least in Heaven, RVs will be perfect, and I won't have to keep fixing them.