To choose such a difficult device as a hammer drill, you need to carefully and without haste. Before you buy, read about reviews of rotary hammers of various brands, consider several models from different manufacturers.
Rotary hammers can conditionally be divided into 2 categories:
The difference between them is, of course, power and reliability, endurance and size.
Professional rotary hammers are much larger, able to work longer and perform more complex tasks. The main criterion or condition for the selection becomes, as a rule, the power of the percussion mechanism, and for the device that will be used for homework.
But if you absolutely do not have experience with such a tool, we recommend that you read the reviews and recommendations of those who already had experience in “communication” with it.After all, only the experience of use gives the most complete picture of the capabilities, uptime and power.
Power. This is the most important parameter, on which the next equally important parameter depends - the strength of the impact. Hammers for home use have power ranging from 420 to 720 watts. The power of professional models reaches 2000 watts.
Impact strength. It can vary from 1 to 30 J. The larger the impact force, the more durable materials can be processed with a tool.
The maximum possible drilling diameter. This parameter is indicated in the model passport data separately for drills and crowns. For drills, it can be from 12 to 80 mm, for crowns from 24 to 160 mm.
Modes of operation. Someone may need a device with several modes, but someone will need only one. Ask for help and advice to “experienced” masters and then you can make the right choice.
