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Hitachi NR90GR Round Head 2-Inch to 3-1/2-Inch Cordless Gas Framing Nailer Accessories
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Hitachi NR90GR Round Head 2-Inch to 3-1/2-Inch Cordless Gas Framing Nailer Reviews
The depth adjustment was as deep as possible and I tried everything to get the nail to fully lodge into the new lumber. I was excited to avoid the hoses all over the place and the sound of the compressor over my stereo. The gun misfired and misfired and misfired some more despite changing nail types (I bought nails at Home Depot AND the ones on the Amazon detail page with no difference). The reality with this gun is that a good framer can hand nail faster than this gun can shoot nails. I wouldn't recommend this gun to anyone unless you enjoy frustration, slow results, and the constant desire to throw this tool across the parking lot. The description says it shoots 3 1/2" nails.
After the gun stopped firing completely, I quit and hand nailed the rest of the sheething. I returned it and purchased a basic Dewalt pnuematic framer and have had much better success. It does shoot them, but only 20% actually go in all the way. I purchased this nail gun for a roofing job that required a total reframe of the sagged structure. When the framing was complete, I thought I'd be home free with the sheeting nails at 2 3/8".
Between not sinking the all the way and misfiring, the tool is more trouble than it's worth. I ended up having to go back over the entire structure with my framing hammer and spend 30-45 minutes setting all the nails.
VERY pleased with the convenience of no hose and 40-lb compressor to lug upstairs. I've had this unit for 2 weeks now, doing some roof and wall framing. Granted, it doesn't bump fire like an air nailer, but that's not a requirement for me as I'm a methodical type, so an extra 10-seconds to nail off a row of studs is not an issue. I find you have to teach yourself the right amount of pressure it takes to enable firing, and I don't give it a second thought now. The gun works well, is plenty powerful, the 3-1/2 inch ring shank limitation is known, so I work within its capabilities.
The solution. I so far have gone thorough 3 of them with no hiccups from full to empty canister.
I found that the problem was with the Hitachi brand gas. The gun would shoot well for a while, then nothing again.
This gun gave me a lot of headaches.it would fire a few nails, then nothing. I would take out the gas canister, press it manually a few times, then reinsert it.
This thing is a great tool, no regrets as long as I use Paslode gas. Red canister Paslode gas.
For some reason the gas metering valve would stick or clog, and not supply enough gas for each shot.
It just won't shoot. I thought this was going to be a sweet little tool that could save me a lot of time on the job. The gun had been a bust right out of the box. Not so with the NR90GR nailer. If you have the skills and the timing of a jungle cat that's been trained by a ninja, you might get it to fire. I've replaced the gas rod multiple times, I've charged the battery, I've taken it to a tool repair twice, and it still doesn't work. Terrible. I've been a framing contractor in Ca for over 18 years and I have never been dissappointed with Hitachi.
It's notorious for great, dependable products. I'm sticking to the hoses until Hitachi comes out with a new and improved model. I was wrong and as a consequence very dissappointed. It didn't even get through one strip of nails.
Not to mention, hose-less, and some really negative comments about this product and the whole portable idea. I am not a carpenter and I can not stand working with 2x4 what is actually 1.5x3.5" - but not precisely (it is sometimes 1 7/16" x 3 7/16" what makes me crazy). As always, Amazon had the best possible price, no shipping charge, and it came in the snap. He is getting one from me as a present, for the help, but even more for the favor he told me about them.
I have a machine shop and make high tech products, so miss-tolerances, I just simply cant tolerate. He never had hose-less one before, million of "normal" ones, and was just impressed with this Hitachi. I am not a "wood lover" (for building structure), and buildings I make are out of concrete, brick+mortar and steel. We framed a roof (what I never did before) in a snap. Safety pressure is just enough to warn you and ask you for correct position.
Perfectly balanced in your hand, no kick back (even with 16d nails) fast operation. As I said, it is really precise tool, didn't stop working not a single time, fired every nail perfectly where I wanted. Not only that this gun is precise tool, but anybody can operate it. Big hook (collapsible) is square shaped - to fit over 2x4, is perfect helper to rest the gun on the truss. I have to say that the carrying case is perfectly organized, for 2 fuel cells, battery+ charger and some 7-8 rows of nails to carry around. Sturdy plastic case is worth the money alone. Not having the hose to pull you down on the top of OSB on the roof, HUGE advantage.
Somebody who commented that this gun as a hard to press/engage is either really weak (my wife used it with no problem) or have malicious intentions towards Hitachi. This is my first nail gun ever. Said all this, I was afraid what I am going to get from this gun, how I am going to perform with it, and is the idea of having a nail gun (opposite to regular hammer) really worth all the hassle, learning curve and other troubles on the way. Changing/feeding new ones is a snap. My friend, who is wood worker for a living and told me about portable nail guns, helped us with the sheeting. For some people is not enough of nails in the gun (1.5 line max) but that is not an issue for me.
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