I have been searching for that video of Holly using a mini jack hammer. I'd really like to see that. No luck so far, but I found this 'chocolate chipper' mentioned here:
The Best Tool to Break Up Cocoa Butter (for easier melting)
I also buy from Soapers Choice. I prefer the PKO flakes. No breaking apart necessary. I've never bought solid palm kernel oil, but breaking up Cocoa Butter is difficult, and does take a lot of muscle, so power tools are sounding more and more attractive for those larger blocks of solid fats!
Also, I purchase the no-stir palm oil (aka palm shortening) from Soapers Choice and the last time I bought it, it came inside a very thick blue plastic bag inside cardboard box. Other than the weight of it (for lifting onto the worktable) scooping the shortening-like palm oil was not difficult on a very warm summer day. Even so, it did take a long time to separate it all out into smaller containers, which makes it easier on me when I later make soap. In the winter it would probably be a lot more solid, though.
To melt solid oils that come in a 7-lb plastic bottle so that I can pour the oil, this is what I do: Set the jug inside of another container just large enough so the the jug with oil cannot tilt over on its side. Place both into my kitchen sink, then fill the outer jug and the kitchen sink with the hottest water possible. For hard oils with a lower melting point, it does not take too long or require refilling the sink with more hot water before the oil melts. But with harder oils, it can take longer and require pouring out the cooled hot water and refilling the outer container and the sink with hottest possible water. The reason for the outer container that won't allow the jug to tip over on it's side is because if I put the jug directly in my sink, the jug flops over on it's side and oil leaks out into the water as it melts.