I have about 60 12" masonry drill bits. about 9 dewalt bits. Most are 12" others are the short ones. All are brand new in the package. !2" bits come in real handy sometimes. bits are 5/8", 5/16", and 1/4". there are a couple 3/4" dewalt ones. $75 buys the whole thing.
these are for standard hammer drills with a regular chuck. I have a mikita and they work great. Also in the box are 9 - 5/8" plug cutters