I'm a big fan of Bosch power tool accessories. They are very decent quality (unlike Makita bits and blades) and actually last a long time if you take good care of them. This set is no different. The screwdriver bits are surprisingly good quality and have yet to round out the stainless steel screws I usually use them on. The drill bits/drills are very sharp and cut cleanly. This set saves a lot of time compared to pre-drilling and subsequent countersinking. The holes fit very nicely without splitting the wood or stripping the threads (assuming you installed the hitch correctly). The only star I docked was for the price. Yes it is quality but I wish they were $3-5 less or at least add a good case for them as I hate my bits hitting each other as it can chip the cutting edges.