I've been looking at wire strippers online for the last few days and I'm looking to buy a good reliable one. Previously I had a homemade one but after stripping a bunch of wire, its falling apart and isn't working out.

So I found these four, but I'm open to suggestions and absolutely in need of opinions.

New Cable Stripper Wire Stripper Stripping Machine by Checkpoint Industry | eBay

Handheld Wire Stripper Using Stock Blade Portable Stripping Machine Pocket Size | eBay

Wire Stripper Strip Scrap Copper Cable Machine Stripping Tool Portable Manual | eBay

Drill Operated Powered Cable Wire Stripping Stripper Machine Strip Copper×blades | eBay