5 Responses to “Hitachi NR90AC3 Round Head 2-3/8-Inch to 3-1/2-Inch Framing Nailer”

1. Anonymous said on November 22nd, 2009 at 2:15 am

   A great follow-up to the NR90AC2. Durable a,d powerfull. You’ll have no problem sinking 3 1/2″ nails into the hardest of woods. A little more money but worth it.
   Rating: 5 / 5

2. Matthew Wicks said on November 22nd, 2009 at 3:52 am

   I’ve had this gun for a good few years but about to swap it for the nr83a2
   Unless you have a pacific need to shoot bigger nails buy the nr83a2. Its cheaper lighter and will shoot into anything your likely to come across.
   8’s weren’t a problem to start off with but now jam regularly and drive me mad hence the swap.
   Rating: 4 / 5

3. Wile E. Coyote said on November 22nd, 2009 at 4:46 am

   This nailer would not feed 16d nails reliably so had to return it. I called Hitachi and they told me the feeder on this unit is larger to accomodate full size 3 1/2 inch nails strips. Since I am using 3 1/4 inch 16d and 8d most of the time, they recommended I buy the NR83AC nailer instead. I wish this information had been in the product details.
   Rating: 2 / 5

4. J. Wedekind said on November 22nd, 2009 at 5:03 am

   I am convinced that there is not a better gun made that can shoot a big nail through the tuffest wood! I have bought 2 of these guns in the last 3 years to replace senco’s and they are simply the best. . . EXCEPT They jam when using 8d’s (2-3/8″ nails). What happens is the nail track is too big for the 8d’s and eventually they ride up on each other and don’t feed properly after you have shot a couple boxes of them. This is a common problem with most framing guns because of the different diameter nails they shoot. If you only feed it one rack of 8d nails at a time (it holds 2) then the jamming is not so bad. The NR83 shoots 8d’s better but it doesn’t have the punch of the NR90, nothing does. If you plan on doing some heavy duty framing get the NR90. If you are an occasional or light duty user or a hobiest get the NR83 but get a Hitachi.
   Rating: 4 / 5

5. J. Mageean said on November 22nd, 2009 at 6:50 am

   The nailer being offered now is the AC3 model and is probably an improvement over the AC2 which I have. The AC2 really gives my men a lot of trouble because it easily double fires nails in the single fire mode. To single fire the AC2 you depress the nail guide and then pull the trigger but if in the recoil you depress the nail guide while contining to hold the trigger you get a double nail that can make a mess of your work particularly the ends of studs and this happens too much. I see on Hitachi’s web site that the AC3 has a lever switch to go to single fire mode so apparently Hitachi got a lot of complaints about this issue
   Rating: 3 / 5