Model # KNR90E-X2

Internet # 204188099

2-Piece 3-1/2 in. Plastic Collated Framing Nailer Kit

This item has been discontinued.
The Home Depot no longer carries this specific product.



Model # KNR90E-X2

Internet # 204188099

The NR90AEPR framing nailer drives plastic collated nails from 2 in. up to 3-1/2 in. in length. Weighing only 7.5 lbs. it is easy to use all day, while still providing the power of a bulkier, heavier nailer. It can be used for floor and framing, truss build-up, window build-up, subflooring, roof decking, wall sheathing and housing construction.

  • Accepts 2 in. up to 3-1/2 in. plastic collated framing nails
  • Lightweight at 7.5 lbs. and well-balanced for ease of maneuverability and less user fatigue
  • Selective actuation allows for quick transitions between sequential and contact nailing with the flip of a switch
  • Tool-less depth adjustment dial allows the user to countersink or flush drive nails into a variety of materials without having to adjust the pressure at the compressor
  • 2-piece anodized aluminum magazine makes repairs or replacement easy and with minimal expense
  • 2-step nail loading makes fastener replenishment quick and easy, reducing downtime
  • Rubber grip provides comfort and ensures a secure grip


Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Air Tool Type 
Air Tool Kit 
Compressor/Air Tool Features 
No Additional Features 
Energy Type 
No additional components or accessories are included 
Loading type 
Maximum Fastener Size 
3-1/2 in 
Minimum Fastener Size 
2 in 
Nail Gauge 
NA / Other 
Nailgun Angle 
Tools Product Type 
Air Tool Kit 


Energy Type: Air
Nail Gauge: NA / Other
Maximum Fastener Size: 3-1/2 in
Review Rating: 4 & Up
Reconditioned: No
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Rated 4.7 out of 5 by 16 reviewers.
Rated 4.0 out of 5.0 by Hitachi Nail Gun This is a great product, I have been very happy with mine, I have used it many large projects as the single nail gun to nail a lot of sheathing as well as 3 1/2" nails for studs and other heavy nails, it has always performed flawlessly, I dont know what people are talking about it not feeding, I have used mine in every position imaginable with no issues, maybe they got a bad one, love the plastic collated nails so much better than wire, I definitely would buy this one again and would also like to have the NR83 so I dont have to switch out nail strips as much, I love how lightweight this nailer is March 30, 2015
Rated 5.0 out of 5.0 by Exactly What I Expected The nail gun worked perfectly right out of the box. Shot over 1,000 nails the very first day! The weight is excellent for a full size nail gun. Loading was easy. The adjustment for nail depth was a little confusing but I figured it out with a little trial and error. August 4, 2015
Rated 5.0 out of 5.0 by Excellent Air Nailer - Great Price The Air Nailer performed correctly right out the box. There were no issues at all with the product. June 9, 2015
Rated 2.0 out of 5.0 by HITACHI'S CORVAIR Like the guy on 3/15 said, lots of jamming and feeding problems. I have been using Hitachis only for the past 35 years and bought this one for the flush nailer, that part I like. Don't know why they changed the design, but missed the boat on this one. As long as you are nailing flat or down it seems to work OK. Nailing vertical I have found that I can only load one strip of nails at a time. I you are only using it part time or not professionally it works fine. But you can't beat the nr83. Someone is probably still using the ones that they stole from me over 20 years ago that had well over a million nails through them. April 21, 2014
Rated 5.0 out of 5.0 by So far a good little nailer Licensed contractor, been using a NR83 for over 10 years and have put up countless houses with the same gun. Its getting tired, so decided to get another gun as backup; was hesitant to change, but decided its a little lighter and smaller and Im not getting any younger. Have had it for about a month now, so far its been flawless, same Hitachi quality, the smaller size was nice on a recent job puttin in roof blocks between rafters. If this thing last as long as my old NR83 I will be very happy. Only bad thing I can say is it doesnt have a rafter hook, but you can buy them for about $15... March 18, 2014
Rated 5.0 out of 5.0 by Great Nailer I found this nailer to be reasonable in price with outstanding performance. It's easy to use, light weight and versatile for it's size. I would recommend this nailer to others. September 21, 2015
Rated 5.0 out of 5.0 by What a superb tooll! Having borrowed a friends nail gun previously that leaked, occasionally fired two nails on top of each other, occasionally did not fire, was heavy and somewhat unwieldy I began looking at a nail gun all my own for my next project. I could not be more pleased with this Hitachi framing gun! No misfires, ever! Fine control of air pressure on the tool - fantastic and it works so well. Nails going in a bit deep because you've switched from setting rafters to placing blocks just turn the little dial a half to 3/4 and perfect depth adjustment without ever leaving your ladder. It is lighter than other guns but seems super sturdy and tough. One other reviewer mentioned the 'plastic' body - no way, metal all the way. Very little plastic anywhere on this tool. Very ergonomically pleasing, great grip and no-nonsense easy to use. And I NEVER write reviews on anything I purchase. That's how good a value this nail gun is! March 23, 2014
Rated 5.0 out of 5.0 by Hitachi 3-1/2 in. 21-Degree Plastic Strip Collated Framing Nailer I bought this on line and Hitachi 3 1/4" round head framing nails in store to nail my patio. The price and the shipping for the gun is excellent. The build looks sturdy and it is light weight so it is easy to carry around and on my arm. So far I used around 200 nails and to the last nail in the magazine without any jam. April 19, 2014
  • 2016-05-30 T15:20:23.071-05:00
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