I really don't like the Century ball link pliers. They are curved at the tip, which means you can only use them one way. They are also hard to get under the links for removal. I disliked them som much that I sprung for the green handle HeliMax pliers from HeliProz. $28 bucks is a lot, but IMHO worth every penney. Also, I do have a set of Japanese Industrial Standard phillips head screwdrivers and believe me, there is a big difference. They fit the Japanese screws perfectly and you'll never strip a head. Well worth it. My favorite pitch guage is the Miniature Aircraft. I went with the cheap one from Century when I was starting out and (just like the pliers) I found that the Century guage was mediocre. For one thing, there is a big gap between the indicator and the pitch scale, making accurate measurements more difficult. Also, the clamping mechanism is cheap and inconsistent. The MA guage is really great for accurate pitch setup. Finally, I think you will want a 5.5 mm nut driver if you go with a Japanese machine. Very helpful tool. Of course, a combination plug wrench and ball link driver is also a good thing to have. Re the hex wrenches, you will find that cheap hex keys round over eventually. I invested in a nice set of hardened machined hex drivers and they are truly a pleasure to work with. I have a Koll Rotor Pro blade balancer and I love it. Probably the best balancer on the market. Having said tat, all these tolls will cost you a lot more than the Century set (the Koll alone is $75), so you may want to start cheap. Personally, I found that after a few months in the hobby, I was replacing my cheap tools with good ones. I hate buying stuff twice.