Advice on bit sets

The cross-head screw is the most commonly used screw. You can recognize this screw by the cross on the top. The most common cross-head screw is a Phillips head screws. It's best to use a Phillips bit to tighten these screws. If your drill already includes a standard bit, it's usually a Phillips bit. Still, it's useful to have multiple sizes.

The Pozidriv screw also has a cross head. But thanks to extra notches in the head, you get a little more grip than with a Phillips screw. The extra grip also allows you to tighten the screws into the material at a slight angle as well. This can be useful when you work in tight spaces. You can also apply more pressure with this screw, so it's secured even better. A Pozidriv bit is the type of bit you should use for a Pozidriv screw.

Slotted or flat screw heads is the simplest type of screw head. You mostly see them in older homes, because this type of screw used to be the standard. Nowadays, they've been replaced with cross-head or Phillips screws. The disadvantage of slotted screws is that you slip out of the slot more easily if you use an electric screwdriver. That's because it doesn't provide a lot of grip. Use the right size slotted screw bit so you don't slip as easily. And make sure the thickness of the bit fits exactly into the slot of the screw head to ensure as little leeway as possible.

Torx screws are used for more demanding jobs. The head of a Torx screw looks like a star with rounded tips. The many 'teeth' you place the Torx bit in, ensure perfect grip and allow you to apply a lot of pressure. The risk of the bit slipping out of the Torx screw is low. Torx screws are used a lot in car manufacturing and household appliances. It's essential that the size of the Torx screws corresponds exactly to that of the Torx bit.

You can recognize the Allen screw by the hexagonal notch on top of the screw. You'll mostly find them in (Swedish) furniture that you have to assemble yourself and on bikes and scooters. Allen screws are also called hex screws, because of the typical hexagonal hole. A trick to remember this: hex is the Greek word for six. You can tighten the hex screws with a hex key, but using a hex bit in your electric screwdriver is much faster.