Okay, so I said some less than flattering things about the Little Bone fret level tool that came with my Katana from Japan. The Japanese seller actually contacted me to demand that I revise my review. Since it had been many months since I had last seen my Little Bone, I said I would give it a try if I were to run across it again in whatever drawer I tossed it.
Being a man of my word, I did run across it and had occasion to level the frets on an old acoustic guitar for a friend yesterday. Decided to give it another look - and it still sucks.
I found it too small to really hold comfortably, and it really didn't do a very good job crowning the frets. Quickly reached for my StewMac file and had the job done in a few minutes.
This guy makes some good products. I love his action measuring gauge, and I do like my Katana (mostly because I can level frets without changing the neck relief - and it does a really good job of leveling with the strings on.) The Little Bone is the one tool that just falls short in my opinion, and there are other options out there that are far better.
Probably going to get some flak again, but I call them like I see them.
The two most important things to remember in life: "The only time it's acceptable to work with amateurs is if you are making porn." "If you want to work with clowns, join a circus."