Any power tool saves time, and even more so when it comes to a screwdriver. A good screwdriver is universal, it will also help when fixing drywall, during the wiring, and simply when you need to save time and tighten a couple of self-tapping screws. But before buying such a tool, you should ask a few important questions to the seller.
1. Rechargeable or mains powered
A question from the category of "obsolete", since a modern screwdriver must operate exclusively from a rechargeable battery. This eliminates the need to constantly carry an extension cord, search for sockets, entanglement in a cord, etc.
2. What is the capacity of the battery
The question should be asked not "how long does the screwdriver work?", But "what is the capacity of its battery?" So how are u different manufacturers, the quality of the battery differs and the capacity, for example, of the Chinese model, may differ significantly from the German tool.
3. What type of battery
And there are only 3 of them:
- Lithium-ion.
- Nickel-cadmium.
- Nickel-magnesium.
It is best to buy a model with a lithium-ion battery. It has a longer service life and better characteristics such as charging time and voltage quality.
4. What type of cartridge
This is also important, since the design of the cartridge directly affects the operating time. Screwdrivers can be with keyless or key type chuck. The first one can be unscrewed and twisted by hand, while the second requires a special key, which usually comes with the device. Screwdrivers with keyless chucks are much more convenient and save a lot of time.
5. Is there a second battery included
If yes, then the presence of a second battery will allow you to work without the long breaks required to charge the battery. The second battery is indispensable for sites where the scope of work can be qualified as "extensive".
6. Manufacturer
Probably every third user knows that Bosch is good, but Chinese products are not. Therefore, before buying a screwdriver, it is important to ask a question about the manufacturer. If this is a little-known representative of Asian countries, for whose products there are not even obscure reviews, then it makes sense to continue searching or to purchase a tool at a higher price.
7. Is there a beat mode
An impact screwdriver is not capable of hollowing out a groove or a furrow in concrete, but the runout mode is indispensable when tightening bolts or screws into problem surfaces. With this functionality, you can also mount metal knitting needles in the walls. Needless to say, the beating mode provides a completely different instrument price.
8. What kind of packaging
Many buyers do not pay attention to what packaging the screwdriver is sold in, but this is important. For household needs, a device in an ordinary cardboard box is suitable. While the well-known manufacturer of high-quality power tools Bosch puts some of its products in comfortable and durable plastic cases. Less difficulties during transportation, and greater protection of the screwdriver from mechanical damage.