Review on 🔩 Efficient Concrete Screw Anchor Drill: CONFAST Offers Quick and Secure Installation by Ben Barrington

You won't find this length in a regular store so I bought it online. On the plus side, bolts work just as well as tapcon bolts depending on your concrete. If it's soft it will tear if overtightened, and if it's really hard you can break them if you put your head down. I've had decent success with a fully cured foundation, some of which I had to knock down with a hammer, but they're still holding. Only real complaint is that it does have to come with a couple of nozzles, mine worked fine for the first 20 holes but got jaded in hard concrete, good luck finding a nozzle this size. I had to drill the boards with a shorter drill bit and take them down to finish the holes to get the required depth. My advice is see if they sell extra bits and buy a few more, but good luck buying screws.