These are the simplest type of anchor that you ever want to use, with just a simple hole drilled by a hammer drill, you can use a #3 Phillips bit to drive the project home. If you were to use the #2 (or P2), this bit would just do a lot of slipping after you get down so far. When this happens then you will have to replace the Tapcon because the head would become stripped. You will go through twice as many Tapcons than what you need to use. I did notice that you do have to drill the hole a little bit more than ¼” deeper than what it says on the package. This will help make room for the cement dust to go to. Otherwise, it would become so packed with cement dust that you will not be able to tighten the Tapcon all the way down.
I have been using these for over 20 years on all types of projects. These projects included installing handrails and mounting of deck brackets to the side of the house to hold posts up. I have also used these to install 2 x 4’s for walls when remodeling a basement. To save yourself some time you might think about getting an installation tool. This is a metal hollow tool that fits over the Tapcon drill bit, and you put the new Tapcon in the open end and it will hold the screw in place while you drive it home. This is called a “slide Condrive Installation tool”. These anchors are made in such a way that you have to have a hammer drill to install them. If you tried to use a regular electric or cordless drill, you will probably end up burning the end of the drill bit and dull the crap out and essentially ruining the you cement drill bit.
Learn more about concrete anchors at fastenmsc.com
