Briefly about the varieties of the instrument
-
Network (electrical) or battery. The first ones work from a 220V network, which is convenient if you need to work in one place next to an outlet (for example, when assembling furniture). Screwdrivers operating from the electrical network do not discharge, but as a disadvantage - attachment to the outlet, which is not very convenient if you need to work in a place where there is no electricity. In addition, the cord during electrical / installation work will constantly get tangled underfoot, which can also be attributed to the disadvantages of choosing network screwdrivers. Rechargeable models are more popular and, moreover, can hold a charge for more than an hour with active use. They are more often used by both professionals and amateur masters.
-
The nutrient is represented by a lithium-ion battery (Li-lon), nickel-metal hydride (Ni-MH), lithium-polymer (Li-Pol) or nickel-cadmium (Ni-Cd). The lithium-ion battery holds a charge for a long time, quickly charges and, moreover, has no memory effect (we will talk about it below). If you need to choose a quality screwdriver for construction and electrical work, give preference to the cordless model with a lithium-ion battery. The only but significant drawback is the highest cost of such power tools, therefore, it is better not to choose this option for summer cottages and rare repairs in the house. The nickel-metal hydride version of the battery is no less common. Due to its environmental friendliness, all modern manufacturers of screwdrivers are already gradually switching to this version. From the pros, the small dimensions of the battery should be highlighted (and therefore the lower weight of the instrument), and from the minuses, the high cost. Another type of battery is lithium polymer. Its development is the most modern. The advantages of such a battery are higher capacity, the disadvantage is the shortest service life compared to analogues. Soon, lithium-polymer batteries for screwdrivers will be finalized and, most likely, will oust their competitors due to their undeniable advantages. Well, the last option that you can choose for your home and garden is a nickel-cadmium battery. Its undoubted advantage is that it is inexpensive, so this option is most often found in budget screwdrivers. In addition, a 5-year shelf life can be considered a positive point (for other options, no more than 3 years). Pros do not give preference to screwdrivers with such a battery, tk. the duration of charging in this case is an order of magnitude longer than in other versions, and besides, there is memory for charging in nickel-cadmium batteries.
-
Hexagonal or three-jaw chuck. The first type of cartridge is suitable just for home and summer cottages, if repair work is carried out extremely rarely and with the need for frequent replacement of equipment. If you want to choose a professional screwdriver, it is better to give preference to the universal three-jaw chuck, which is also called a keyless chuck. Its advantage is that you can fix any bit or drill, the main thing is that the diameter is appropriate.
- Voltage 12; 14.4 or 18 volts. The higher the voltage, the more the power of the power tool for the electrician. If you need to choose a powerful screwdriver for screwing in long self-tapping screws for metal, moreover, with a large diameter (for example, for roofing on a roof made of corrugated board), choose the 18-volt model. A 12 V screwdriver will be enough to assemble furniture, housework or a summer residence.
- The number of modes is 1, 2 or 3.The simplest budget models are single-speed - their speed can be from 0 to 800 rpm. More reliable and popular - cordless screwdrivers with 2 speeds - from 0 to 400 rpm (for tightening) and from 0 to 1300 rpm (for drilling). The third speed can be found in professional versions. The number of revolutions per minute can be as high as 3000.
We figured out the main options for execution, now we will provide some useful tips that will help you choose the right screwdriver for home, work and summer cottage. Be sure to watch the video below, which clearly explains all the main parameters of this power tool.
Selection Tips
If you know what parameters of the screwdriver you should pay attention to, then you can never regret the purchase made, since the equipment will fully meet the requirements. Experts advise taking into account some of the points below.
Stanley products can be identified by their characteristic yellow color. Their body is made of polyamide, which is able to withstand falls from a height and mechanical stress
This is important when it comes to the longevity of the 18 volt drill / driver and the protection of its internal components. Some models have a special mount where you can hook additional equipment.
If the handle fits well in the hand, then it is easier to work with a screwdriver.
The ergonomic shape increases the grip area, thus minimizing the likelihood of the tool accidentally falling out of the hand.
The use of lithium-ion rechargeable batteries allows you to use the screwdriver for longer, as the number of charges of the unit approaches the 500 cycle mark. The mechanism is fixed in Stanley models with a slider device. These batteries are lightweight, so the overall design is balanced.
Torque is considered one of the most important indicators. In the presented models, it is different and reaches a maximum mark of 45 N * m (in the SCD20C2K device). This means that such equipment can drive screws even into concrete walls.
The torque can be adjusted - for this, there is a clutch in the design.
When buying, you should pay attention to the availability of additional functions. The fewer the manufacturer offers, the cheaper the screwdriver costs, but then the user has fewer opportunities.
If there is no backlight, you will have to work during the day or using an additional flashlight. Thanks to the indicator, you can control the amount of charge and, accordingly, schedule the implementation of the tasks.
For an overview of the demonstration of the Stanley screwdriver, see the following video.
Description
Such units are perfectly adapted to the performance of construction and installation work. Professional, more powerful models support the impact function, which allows you not only to drive screws in surfaces of different densities, but also to drill holes.
The cost of the equipment from this manufacturer depends on the type of battery installed inside, the power and the number of revolutions.
Stanley screwdrivers are equipped with a quick-release chuck, thanks to which the user can change equipment in a matter of seconds.
Sufficient torque for drilling through mild steel. The user has the opportunity to choose the mode of operation he needs, since the stop clutch has 20 positions. These features ensure that the tooling chuck will snap into position, making it extremely difficult to rip off the slot.
There is a start button on the body - when you press it, the speed at which the screws are driven into the surface is adjusted. According to user reviews, it is convenient to work with such a tool, because the high efficiency of using a screwdriver allows you to perform the task, regardless of the conditions.
The main feature of models with rechargeable batteries is considered to be their mobility and lack of attachment to a power source. In most cases, the battery is removable and can be replaced with the one supplied.
The reliability, build quality and power of such units are not questioned. The manufacturer tried to endow the models with the same number of functions that network screwdrivers demonstrate.
