This is a power screwdriver that we use to power drive screws in. This particular one has a button for forward and you select the other side for reverse. Now this particular one happens to have a handle that rotates. It gives you a little better grip and also if you are in a tight area it would cut down the length of it so it won't be quite so long. Now most of them also have an adjustment on the front for how much torque there is before it slips. So if you are driving something that you don't want to break through, you might want to put it on a lighter torque setting. Now I've got a Phillips in here, we'll drive a Phillips screw. So we just put the screw wherever we want to run it in, line up the notches, we've got the switch in the drive position and then we drive it in. So we've got the screw driven in and put it to whatever depth you want it to and to take it out you would just switch it to reverse on the switch; whatever type of screwdriver you have and just lean on it and let it come out. Now one thing with the Phillips, is you got to push on it a little harder than a slotted screwdriver to try and avoid it slipping out. If you don't push actually on it when you are driving it, it can slip. Once you burr up the end, you take this screw out and throw it away. So you want to make sure you have an adequate force on it so that the bit does not slip out of the notches out of the back screw.