Hitachi DH40MRY Black Friday Deals!
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Hitachi DH40MRY Black Friday Deals!.
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The owner's manual states that it weighs only 15.0 lbs. This thing unprejudiced felt too heavy to be 15 lbs., so checked it. When I checked the weight without the depth rod on on my electronic postal scale, it read 17 lbs. 11 oz. I doubled checked it on my bathroom scale and it weighed 18.0 lbs.
In terms of performance, it does truly live up to its claim of indecent vibration and indecent noise level. At the maximum run setting, I drilled 5/8" holes 6" deep in concrete at half a small each. I ran it side by side a Milwaukee 5346-21 1.75" rotary hammer and I could definitely feel the Hitachi's noticeably lower vibration and noise, due to its exhaust of a vibration damper counterweight inside the handle and an articulating vibration enthralling handle. It's a construct Hitachi calls UVP (User Vibration Protection) . But it's notable to brand that the Milwaukee is a heavier duty machine, running at 13A (with 8.6 ft*lbs of energy per impact), whereas the Hitachi runs at only 9.2A (with 7.7 ft*lbs of energy per impact) . It's also worth noting that the Milwaukee 5346-21 also weighs 18.0 pounds, so the Milwaukee is a worthy more remarkable machine at about the same weight.
It doesn't have a switch lock to lock it in the ON area, which is not a grand deal when drilling, but in the hammer mode having it locked in the ON state can acquire it less wearisome to operate. That being said, having it locked in the ON state can be a broad safety hazard if the bit hits a rebar in the drilling mode.
One aspect of this rotary hammer I very distinguished indulge in is that re-greasing of the impact mechanism and replacement of the carbon brushes can be easily performed by the user, as the owner's manual shows. The manual states that it should be re-greased after every six months of employ. The hammer comes with one tube of grease. With the Milwaukee, these simple maintenance tasks have to be performed by their service center. On top of the hefty Milwaukee service center charges, round-trip shipping costs of an 18 pound tool plus packaging can speed $70 or more. Together these can easily equal almost 1/3 of the cost of the rotary hammer factual there. Not to mention you'll be deprived of the exhaust of the tool for a few weeks and risk hurt to the tool during shipping. Taking all this into consideration, and you'll search for that the ownership cost of the Hitachi is noteworthy lower than the Milwaukee.
The green/black Ninja-looking do of the Hitachi has a lot of piquant corners and though-provoking edges that, along with the heavy weight, can compose lugging it around painful on the hands.
Besides drilling the 5/8" holes I haven't conventional it too remarkable, but I will add to this review when I have more experience with it.
