https://www.homedepot.c
I’m really surprised how long this deal has been going on since before Christmas. Coincidentally, it was linked in the comments section of the 17-piece set that was posted pre-Christmas, which is still on sale by the way. The 2 bigger hole saws: 5-inch and 4-1/2 inch alone cost more than $30 each, so paying a little extra is worth it IMO. And if you own these long enough, I have no doubt that you will have to buy the bigger sizes at some point.