Hammer rotary hammers: features of selection and tips for use

A hammer drill is a very important and relevant tool for home repairs, for performing construction work. But his choice often faces difficulties. Without figuring out exactly how to use the Hammer perforator, what to look for when choosing it - it will not be possible to do the main work with high quality.

Professional drilling machines of this brand are capable of working in three different modes, such as:

• clean drilling;
• drilling with striking;
• one strike.

The trade line includes both standard and semi-professional products.

The difference between the products of these classes is as follows:

• the specifics of the placement of the electric motor;
• the level of protection against dust;
• the ability to control the twisting speed;
• the presence of a reverse function.

Positive marks from home craftsmen are given models PRT 800... She is able to work for about 5 years. Importantly, this stability is maintained even with active use by professional repairmen.

But at the same time, it is necessary to remember two weaknesses: some jobs require more powerful equipment, and in addition, using this hammer drill is not for weak people.

Endorsed by consumers and hammer drill PRT 650 A... Experienced craftsmen claim that the cost of this model is fully justified in practice. It can be safely used to prepare holes in a brick, including before installing plasterboard elements. Compared to peers in its class, this rotary hammer is inexpensive.

The following advantages are also noted:

• the convenience of the case;
• decent delivery set;
• the presence of drilling and chiselling modes;
• acceptable power.

Amateur builders, repairmen and about models PRT 1200... For a year or more of operation, it is not satisfactory. The fact that, due to the weight of the device, you have to hold it with two hands when working is just an inevitable moment.

It is appropriate to end the review at models PRT 800 C Premium... Even those craftsmen who use the device very intensively are satisfied. The assembly of the device evokes consistently positive assessments. The appearance of elevators and knocks is categorically excluded, while the application of powerful blows is ensured.

The only drawback is the fragility of the branded case, which will have to be protected from falls.

Getting to know the models isn't everything. Be sure to study the technical nuances of the perforator, its work, before giving money for it. For beginners, first of all, you should understand: there is a direct relationship between the mass of the device and its power. There are no lightweight models capable of delivering the most powerful blow.

Special accessories are a useful addition.If the kit already includes dust-proof and vibration-limiting devices, that's very good.

As for the electric "heart" of the hammer drill, its horizontal layout is preferable for household machines. All the same, you will not have to punch 3 reinforced concrete walls every day. Therefore, lightness is much more important.

Indeed, in this case, the maximum power and the ability to drill, chisel without interruption for longer are your own earned money.

Passive vibration protection is a useful addition. Yes, it dampens only a small part of the vibrations, but it additionally reduces the risk of the rock drill slipping out of your hands.

Even the cheapest rock drill must be used wisely. Otherwise, he will not work even half of the due date. The most important rule is the correct insertion of the drill or drill. You need to fix and remove these devices only as instructed by the instructions. When planning to use the impact mode, it is required to apply a protective lubricant under the brand of the manufacturer of the drilling machine..

This will not affect the speed and quality of work. It is also impossible to turn on the shock mode when the working part does not rest against the surface. Air strikes are extremely harmful to technology.

When working with a rock drill, it is always best to use a safety sleeve. It is she who helps to avoid unpleasant consequences both for the equipment and for its owner, if suddenly the drill or drill is jammed. It is categorically unacceptable to put pressure on the hammer drill as a whole or on its handle. Usually they start working at the lowest speed, only then gradually increase them.

And you should also remember about such rules as:

• the perforator is cooled only by stopping for a certain time, and nothing else;
• before starting work, you should check the quality of the insulation of the case and all wires;
• it is undesirable to drill or hammer in anything without protective glasses and gloves.

Even for professional, careful users, hammer drills sometimes break. But you can do something to correct the situation with your own hands. Without contacting specialized repair centers, it is possible to replace brushes and starters, a bearing and a switch, even a power cable. Home renovation is likely to be done with light hammer drills.

Disassembly of the punch is as follows:

• sequentially remove the end part, washer, spring and ball;
• unlock the case;
• take the ends of the wire feeding the stator;
• pull out the brush holder;
• the gearbox and the housing are spread apart so that the switch can be pulled out;
• holding the body in a vice, take out the necessary parts;
• they are replaced or cleaned;
• collect everything in reverse order.

See below for an overview of the Hammer PRT650A rotary hammer.