Hammer screwdrivers: characteristics, varieties, subtleties of choice and application

On the modern market, there are many tools of imported and domestic production. Hammer brand screwdrivers are in great demand. They, in turn, are divided into drums and unstressed.

The most effective is a cordless drill with impact drilling function., it is suitable for working with hard surfaces and solves the most difficult tasks in the construction process. Despite the high cost, the products of the American brand Hammer still managed to gain popularity among Russian craftsmen.

Screwdrivers are available in two varieties - mains and cordless. The latter are the most mobile, as they allow you to use the tool on the road, carry it at any distance, and all this happens due to the energy-intensive battery, which is charged from the mains, providing continuous operation for several hours.

Of the technical parameters of Hammer screwdrivers, several of the most important should be highlighted.

• Torque. This characteristic is most significant for professionals. High torque (VKM) allows drilling of dense materials, as well as work with large diameters of fasteners. For such complex work, the manufacturer offers a portable device with great capabilities - the Hammer 18 V screwdriver. The presented model allows the master to adjust the VCR in order to choose the optimal mode for work.

• Rotation frequency. The diameter of the hole made by the device will depend on how the spindle rotates. Also, RPM affects the ability to twist fasteners into hard surfaces. By using low speeds during operation, you protect the engine from unnecessary overload. The manufacturer recommends giving preference to a screwdriver equipped with a gearbox with two speed modes.
• Chuck type. There are key and keyless chucks. Most of the work is carried out using cordless drills with a keyless chuck. The updated models are endowed with a shaft lock, this feature provides a quick and fairly simple bit change.
• Equipment weight. In the case of choosing a heavy tool, the working time is significantly reduced, since it is difficult to hold it for a long time. The Hammer brand offers powerful professional devices that are characterized by a long operating time combined with a light weight.

• Hammer DRL400A - a simplified model with a powerful engine. Suitable for household renovation / construction work. It has only one speed, so there is no switch. But there is a KM adjustment. Allows you to punch a 20 mm hole, for example in wood. Smaller holes can be made in the metal cover. The price of this unit is 2,000 rubles.
• Hammer DRL420 - differs from the previous screwdriver by the presence of two angular speeds - 1 100 rpm. / min. and 350 about. / min. The power is 280 watts. The cost varies from 2 to 3 thousand rubles.

• Hammer DRL500A - similar model with one speed, but the torque is 24 Nm. Price - 2 300 rubles.
• Hammer DRL600S Premium - the average power consumption is 500 W. The angular velocity is about 1 600 rpm. / min. Allows small holes to be drilled, although the KM is 15 Nm.A screwdriver costs 2,500 rubles.
• Hammer DRL320 Premium - a similar model, only equipped with two speed modes (1,500 rpm and 450 rpm), there is a switch for this. Keyless chuck. A kick function is available. The cost is much higher - starting from 3,000 rubles and more.

• Hammer ACD3.6LE - is a low-power screwdriver with a bit holder, battery - 3.6 volts. The angular velocity does not exceed 250 rpm. / min. Spare bits are included in the kit. The device is suitable for assembling furniture, fixing drywall sheets. Price - about 1,000 rubles.
• Hammer ACD3.6С Premium - equipped with a lithium battery with an angular speed of 180 rpm. / min. The cartridge is also under the bat. The cost is about 1,400 rubles.
• Hammer ACD121A - this drill / driver has only one speed - 550 rpm. The tool has a rather weak mechanism, but it copes well with household work, therefore it is endowed with a minimum set of additional functions. Unit price - 1,300 rubles.
• Hammer ACD120LE - the tool is equipped with a 12 volt nickel-cadmium battery. This drill costs more than 2,000 rubles.

A charger is included with the cordless tool. According to the instructions, before the first use, the device must be fully charged, since the instrument is packed and sold in a discharged state, that is, it is unsuitable for use. The power of the charger is designed for two batteries at once, no more.

The entire charging process of the device is completely controlled, as the instrument has a special accurate indicator. As soon as a discharged battery is installed in the charger, a red light will light up, and when fully charged, a green one. A blinking red sensor indicates incorrect battery installation or malfunction of the device. If you connected a discharged battery to the device and the sensor does not light up, remove it and let it cool to room temperature.

Proper charging of the device is only possible if the specified temperature is observed. It is also recommended to carry out the procedure in a humid room. According to the instructions, the optimum air temperature is from -10 to + 40 degrees. The manufacturer claims that these parameters can ensure correct charging, avoid over-charging at low degrees and overheating of the battery. As for humidity, the requirements here are not particularly stringent, the main thing is that the room is well ventilated.

Basic rules of operation:

• planning intensive work with a screwdriver - first swing it;
• to gain full power, it is necessary to discharge / charge the device about 5 times;
• using the unit, do not allow deep discharge of the battery, it is enough to wait for a significant decrease in power;
• do not recharge an uncharged battery, it will wear out quickly and become defective.

As the main spare parts for urgent repairs, the same batteries are used, which wear out after a certain amount of time of regular use of the device. It is best to purchase this part in specialized stores, in the same place where you bought the screwdriver itself. The main thing is that the battery corresponds to the same capacity and the same parameters. It is also worth deciding on the material from which the battery is made: nickel or lithium.

As for the reviews for these products, they are mostly positive.The cordless drill-screwdriver is especially noted, which copes well with simple household tasks. In addition, the stores offer more professional models, differing in power and number of speeds that allow you to work with various surfaces.

The American brand Hammer stands for quality, reliability, durability and good results.

In the next video, you will find a detailed review of the Hammer ACD 182 screwdriver.