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I decided to compare, in the test, a conventional rotary hammer with a brushless cordless drill Dnipro M DHR 200 BC ULTRA. And he did a small test on the drills on the drills for drilling speed. Also tested it on all rechargeable batteries 2 A / h, also 4 A / h, and 5 A / h from samsuhg. Now, after the review, it will be possible to draw conclusions, is it better to pay extra for makita or bosch? If you drill mainly with drills 6 8 10 mm. And as always in the comments you can read reviews of the cordless hammer. And get recommendations on how to choose a hammer drill.
I also disassembled the puncher, and you can see how this is done, because it was not in vain that I took an overview of the tool, but in order to benefit people.