With 2-way fit rims, I always struggled to install new tires. Occasionally, I would pinch the new tube and have to remove and reinstall the tire. Since I got the Kool Stop Tire Bead Jack I have not had any problems - installation is now relatively easy. One of my best purchases.
This kit has almost everything you need to keep your bike in optimal tune. I have campy components on some of my bikes, and there are a few specialty tools that this doesn't include, but for must stuff, it has everything needed. If you are looking for a nice set of maintenance tools, this is a worthwhile investment.
Specialized tool to fit 12-spline lockring. I found it helpful to hold it in place by re-inserting quick release skewer before wrenching to keep it from slipping out.
Crank puller that does exactly what it is intended to do. I travel with my tandem bicycle and I use this crank puller to remove the cranks as part of the bicycle disassembly and packing process.