Screwdriver bits are of the quick release type but the bits are older and will not work with my Ryobi quick release impact wrench. makes no sense to me and I had to buy a $12 adapter to use them. I don't understand why it's packaged like that, half and half. Quick connect because they just slide out. Ironically, Ryobi makes a set of drill bits with quick connect tips, so I don't understand why they didn't come with these bits in this kit. I'm just a homeowner that uses this from time to time so maybe I don't really understand how to do this. However, I didn't send it back because the other 80 pieces were fine and I can use them.