I just did mine recently. It was more like 25 bucks for the tools. And the tools are different than the old shimano square taper tools so be careful when buying the tools. Also when threading in your bottom bracket, get some plumbers teflon tape, wrap it a couple times around the threads of the BB and then thread it in. The teflon tape will keep the BB from squeeking or backing out, and wont attract dirt like anti seize will. Have fun, its really a very simple job.