I'm wondering when should we choose a screwdriver.
Can it be used to put screws in wood, concrete or metal without drilling a hole?
If we need to drill a pilot hole anyway, why don't we just use drills to put the screws in?
Why use a screwdriver when we have drill/drivers now
diy-vs-prodrillscrewdrivertools
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I've had pretty good luck with Ryobi tools in the past, and the drill you are looking at will certainly do what you want it to.
Normally I'd recommend a cordless drill to just about anybody, but if you find that you will hardly ever use it, a corded drill might be better. No point in having a cordless drill if the battery is always dead when you need it because it sat around for 6 months without being used or charged.
No, this isn't normal. Your anchors don't fit to your screws. What is happening is that the tip of the screw reached the concrete, and, of course, you can't force a screw into concrete - not even with a drill or a electric screwdriver, and certainly not by hand.
This picture shows how anchor and screw should fit into the hole. The hole definitely needs to be longer than the screw. The screw should be a bit longer than the anchor, but not as long. Maybe the clerk saw that you have picked an wood screw and gave you anchors suited for the second situation. It doesn't hurt to use wood screws with anchors in a concrete wall, you'll just have the cap jutting out a bit. But the length of the screw should be only a bit longer than that of the anchor (the surplus should equal the length of the tip + the length of the attached thing), and your cap will stick out a bit if the thing you are attaching isn't soft enough for the cap to sink in.
The table shows how to determine the correct hole depth. It also tells you what diameter of anchor and drill to choose for a given screw. As for the length of the screw, it is determined by the weight it will have to carry. Vertical screws are more problematic than screws in walls, because gravity is pulling in the direction of the hole, not at 90° to it. Light curtains will be OK with your size screw, but don't put any molton on them.
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Best Answer
If you can use a drill with a screwdriver bit to drive a screw, then most of the time, use it.
Here's when you might be smarter to use a screwdriver:
The screw is going into a pre-tapped (threaded) hole in metal, or plastic, or any soft material.
Always at least start such screws by hand -- so that you can avoid cross-threading them.
Putting screws into delicate assemblies: eyeglasses, electronics, medical prosthetics, etc.
When working in cramped spaces, a drill/driver often can't fit. Screwdrivers come in flexible, stubby, right-angle, etc. varieties for such occasions.
For emergencies or odd jobs. Multi-bit screwdriver tools are dirt-cheap now. I have one in all my vehicles. I keep one in my briefcase, one at my grandmother's house, etc. You'd be surprised how often something needs to get screwed ;) and I certainly don't have dozens of cordless drills and chargers.
When the environment is likely to damage an electric device -- working in the rain, or in the mud under a house, or in a very gritty environment, etc. (Note that this is one more reason to make employees buy their own tools.)
When working with a material where finish is important. A driver is much more likely to strip the screw interface, or to slip and mar the material being screwed, or to drive the screw too deep and crack or warp the surface of the material.
When driving slot-head screws. These are notoriously hard to drive with a drill; the bit flies out of the slot too easily.
When a precise torque is needed. (NEVER trust the torque setting on a motorized driver unless it is one of the industrial models made for that purpose and it has been recently calibrated.)
When the screw itself is delicate, such as plastic screws, soft metal screws, threaded wooden dowels, etc.
When working around volatile chemicals or in an explosive environment.
When working in a clean-room environment, screwdrivers are much less likely to contaminate and are easier to sanitize/sterilize.
When chemical or radiological contamination is an issue. A plain screwdriver is much easier to decontaminate.
When the power has failed and/or the battery is dead (batteries also stop taking a charge after a while and need to be replaced). Thanks to ratchet freak for the reminder.
When you want a nice vodka "kick" to your orange juice.