Power Tools Reviews
Hitachi NR90GR Round Head 2-Inch to 3-1/2-Inch Cordless Gas Framing Nailer
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 Very, very disappointed I had hoped this would be a great tool for small projects, but it turned out to be a great disappointment. I was able to drive 8 (eight) nails in standard 2x4x8 after which the tool stopped working. With a fully charged battery I thought the fuel cell might have been from a bad stock, so I replaced it, but with the same result. Being optimistic, I bought a new set of Hitachi fuel cells, but that didn't change anything. I have followed the procedures outlined in the Troubleshooting section of the Manual but the tool refuses to work. I have been using power, and pneumatic tools for a long time, but this one got me :( Probably Hitachi should revise their testing procedure, at least for this tool, to ensure its reliability. I hope Amazon will accept a return for the nailer, but I ended up with a box of nails and two sets of fuel cells for a total of almost $100 lost money!!!  Pretty woman Purchase experience from Amazon - 4. I have put five strips of Hitachi 3x.120 ring shank HDG nails through my new NR90GR. I liken the experience to a Pretty woman___who is celibate. It looks good, feels good but doesn't satisfy. I was nailing standard pine 2x4's together and without fail every nail was left standing a half inch or more. I had to finish the task by hand. The depth was set to max penetration and I tried different new fuel sticks. I am in Miami so temp and elevation is not a factor. I have left email with Hitachi support, still waiting a reply. If they offer meaning full help, I'll follow up this review. 3 strikes We have three of these guns on our jobsite, and so far its three strikes against this gun. Two of them have (exploded) and broken in half, and one has multiple parts broken. I dislike the difficulty in actually using this gun above your head or in a position where you can't use both hands to press the gun down HARD enough to activate it. It has a very small magazine and trigger pull is atrociously hard. I would not buy one of these guns for my own use, it needs a lot of improvement. It is great not to have to drag a hose around but its still not worth it yet with this gun. Doesn't work above 5,000 feet I did a lot of research on line in my quest for a framing nailer. Since my projects were inside the house where it would be used I thought a cordless would be the best choice. The Hitachi looks like it could sink nails from hell and I couldn't wait to try out the new toy. I followed all the instruction on the preparations before use and read all the safety precautions. My first use of the nail gun was to test fire some nails to make sure the depth was set properly. Three out of six nails went into the scrape 2" x 6" at the right depth. I figured the three that didn't go in was from operator error. Well, off to the project, which was to build two interior walls out of 2" x 4" materials. The first wall was 8' x 10' and it took almost 4 hours to build between cutting material and trying to get the nail gun to fire. In four hours I shot 30 nails and half of them never went in the full depth. So I went to the trouble shooting guide and followed the check list. Nothing improved after charging the battery again and inserting a fresh gas cartridge. On page 13 of the instruction and safety guide, right hand column, last paragraph, it says " not recommended for use above 5,000 feet...". Well guess what, Albuquerque, New Mexico is above 5.000 feet. So the next morning I went to Lowes and talked to a tool customer service representative and told him my problem. He said that "Paslode had to come up with High Altitude gas cartridge to make their guns fire correctly." So hopefully with enough complaints Hitachi will do the same. I ended up buying another Hitachi framing nailer that runs off compressed air. It works great. I finished the second wall in two hours. Somewhere in the product description on Amazon/Hitachi web site they need to put that statement about use above 5,000 feet to let a potential customer know what may happen. If I would have known prior to making my purchase that it wouldn't work very well that I would have purchased the air model instead, the first time out. I must say that Amazon did refund my money in full to include the shipping and handling without any hassles. That part worked just fine! | |||||||||
