Hitachi NV45AB2 7/8-Inch to 1-3/4-Inch Roofing Nailer

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• PUR-Hose PUR-38X100 3/8-Inch X 100 Polyurethane 250 PSI Air Hose
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This is a well made roofing nailer, I own several other hitachi nailers (framing amd siding). Owned both Duo Fast and Stanley Bostich before, I'm glad I decided to switch to hitachi. I'm very pleased with all of them.

The point that is most likely to jam is at the last nail. I don't know why it does that. I expect some problems but they were minor when you consider the time I saved over nailing them by hand. This roofing Nailer jammed more than I think it should. Overall it think it is a good nailer.

You could figure on at least one jam per roll which is 120 nails. Usually it falls out on its own but if it hangs up you can figure on a jam. I also had it shoot two or even 3 hails at a burst. It is not that I am heavy on the trigger.

I assume that this was a one of kind problem. The Nailer I received would not advance to the next nail. The problem was solved by repositioning the piston cover. Everything else about the nailer appears to be of the quality expressed in the reviews. There was no rust or contamination on the parts.

They wear out shingling guns quickly. The bostiches are clumsy and last about three months before our crew refuses to use them any more.Hitachi is by far the best gun I have used. The hitachi's are then sold. People do buy them. My company roofs year around.

They lay down a huge number of shingles a year. The hitachi's run reliably for a year and a half. Some are repeat customers. Bostich is not bad for sporatic use. We have some very fast roofers who put in 50 hours a week.

The hitachi's run reliably for another year after being rebuilt. I have not used any other brands. Purchasers are warned that the guns are at the end of their useful life.

But had to hand set about every third nail while applying Corning 40 year shingles. Used two different compressors (4 gal 1 hp CH extreme and a 20 gal Sanborn 5 hp) at various pressures up to 115 psi. First Hitachi I bought based upon my son's experience with other Hitachi products and its reputation. He reported the same problems applying composite siding but said it seem to get better with use. Purchased a Hitachi NV45AB2 from Amazon. Returned the nailer to Amazon for a second Hitachi NV45AB2 nailer but still had the same problem. Don't think I'd purchase another one. Lent the nailer to my son who uses a third brand of compressor (dual tank but don't know the brand).