Seems as though welding cable in the same size would cost roughly the same amount, so it looks like a good deal to me. I have used these for a couple of years and they are good as new and work superbly. I am a heavy equipment mechanic and use them regularly. I don't think any jump box will...
Also i use a vertical homeade bender with an air over hydraulic cylinder from harbor freight, and a magnetic digital angle gauge. I have good success with the setup.
There are many TPMS tools out there to be had, Autel makes a decently priced one, there are some very cheap options at Walmart and such that I can't attest to. Honestly if you can't unmout and remount your own tires I can't see that it would be cost effective to buy the tool. The relearn process...
Thanks, I have 3 boys, from 12 to 4 and all have varying levels of tool sets, I too believe it's a great gift to give that will hopefully last their lifetimes.
Carlyle fit the bill in this case as he is a green fanatic and for the price they seem to be excellent quality!