Very disappointed with this kit. It's overpriced for what you get but when I bought it I figured it would save me the hassle of going to the hardware store so whatever. The masonry drill has 4 SDS flutes plus a drill chuck in the base, but my hammer drill is standard. 3 jaw chuck. Thus, it was impossible to center the masonry drill bit in my drill bit. I could kind of understand it, but it didn't feel reliable. So I still had to go to the hardware store and buy regular masonry, but with a regular stock. If you purchase this kit please ensure you have the correct sds plus chuck. I didn't, so it was a waste of money. For the price, they could include both types of masonry bits, or just a simpler one that fits all rounds. Specially for this set which is designed for homeowners. Non-professionals don't have SDS punches.