I had to remove a large heatsink from my CPU to replace the CPU, hwoever Hyper 212 evos arte notorious for being less than steller with their X bracket mount despite otherwise being an awsome cooler. So I purchased the 64 peice driver set and it worked amazingly. Arrived a day later than expected but worked swimmingly and had the screw driver bits I needed. In the end worked great and I highly reccomkend it for those working with computers.
Fairly easy as stated before bit fit perfectly for the screws.
being picky about your tools is never bad, so dont be afraid to scrutinize what your using.