The NR90AES1 is a 21 degree plastic-collated framing nailer that drives 2 to 3-1/2 inch nails and weighs 7.5 lb. A 21 degree magazine accepts full round head nails, which is the head style most building codes expect for structural framing. It is sold for flooring, trusses, window build-up, subfloors, roof decking and walls.
At 7.5 lb it is among the lighter pneumatic framers, which matters when you are holding it overhead for hours. It does need a compressor and hose, so it is not a go-anywhere tool, and a small pancake compressor will struggle with rapid nailing. Compared with the 30 degree NR90ADS1 it uses plastic strips that leave small plastic debris, but the full round head is preferred.
In ownership, add a few drops of air tool oil each day, drain the compressor tank and keep the nosepiece clean. Parts and nails are easy to find, and a trade brand keeps the tool serviceable for a decade of use. A common upgrade is a spare nose cover and a set of O-rings, since a framing gun that sits in a truck gets dusty, and a clean nose is the cheapest insurance against a jam on a long day.
What works
- 21 degree plastic collation takes full round head nails
- 7.5 lb weight reduces overhead fatigue
- Drives 2 to 3-1/2 in nails for framing
- Trade brand with easy parts and nail supply
Watch out for
- Needs a compressor and hose
- Plastic collation leaves bits of debris
- Higher price tier than imports
Spec sheet
- Angle
- 21 degree plastic collated
- Nail length
- 2 to 3-1/2 in
- Weight
- 7.5 lb
- Power
- Pneumatic, compressor needed
- Use
- Framing, trusses, decking, sheathing





