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Model # 502200

Internet # 202192867

DF350S Pneumatic 3-1/2 in. 20° Round-Head Framing Nailer

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

$299.00 /each




Model # 502200

Internet # 202192867

The Duo-Fast 20° Round-Head Framing Nailer drives 16D 2 - 3-1/2 in. nails and has a top-load magazine for easy reloads with less down time. A tool-free depth of drive lets you make easy adjustments for a variety of materials. This nailer can be set for sequential or contact fire and has a nail lock-out feature that prevents dry firing to help extend service life.

  • Top-load magazine for easy fastener changes
  • Dual-mode trigger for sequential- or contact-fire operation
  • Tool-free depth of drive for easy adjustments
  • Nail lock-out prevents dry firing
  • Uses 2 - 3-1/2 in. fasteners
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Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Air Tool Type 
Air Nailer 
Compressor/Air Tool Features 
Fastener Depth Control 
Energy Type 
No additional components or accessories are included 
Loading type 
Maximum Fastener Size 
3-1/2 in 
Minimum Fastener Size 
2 in 
Minimum Recommended Air Delivery SCFM @ 90PSI 
Minimum Recommended Operating Pressure (psi) 
Nail Gauge 
NA / Other 
Nailgun Angle 
Tools Product Type 
Power Tool 


Rated 4.8 out of 5 by 11 reviewers.
Rated 5.0 out of 5.0 by I should have bought this a long time ago This thing really drives the nails. Fast and as deep as you want. Never had a miss fire and holds a lot of nails. This is the best nailer I have owned and a real treat to use. August 11, 2014
Rated 5.0 out of 5.0 by Solid & Heavy Duty Nailer very nice & easy to use nailer. comes with a very nice clip to either clip on ladder or belt. very solid & well put together. for the size and capability level of this nailer, the weight is actually very good & comfortable for using at larger intervals!! September 6, 2014
Rated 4.0 out of 5.0 by Nice Nailer At A fair Price I received the duo fast nailer recently. It came well packed in a heavy cardboard box, which also included a pair of safety goggles. It does not come with an air fitting. It comes with the trigger set up as single nailing, to change to bump nail mode all you have to do is pull the o-ring off the trigger pin, push the trigger forward and push the trigger pin back thru and slip the o-ring back on. Just be careful not to lose the o-ring its very small. The trigger has imprints on it so you know it's in the right place. Depth of drive adjustment is easy as all you do is turn the adjustment screw on the nailer head, The unit also comes included with a nice rafter hook and holds two full strips of nails. The gun fires smooth without stutter or bouneback and drives the nails in well. It's a little heavier than some of my other guns, but not enough to make a difference to me. Overall I think it's a good quality gun built well and solid at a fair price. August 1, 2014
Rated 5.0 out of 5.0 by High Quality Framing Nailer This is a very finely crafted framing nailer. The gun is very powerful, capable of burying the head of a 2 1/2" nail deep into stacked 2x4s. The fit and finish are superb. Most of the gun is metal and the handle grip is comfortable. Nails slide with ease in the magazine, and the feed mechanism glides very smoothly in both directions. The gun feels very solid in-hand, and the controls are large, easy to see and access. This is a nice tool. November 4, 2014
Rated 5.0 out of 5.0 by Not too heavy and gets the job done fast! Using this nailer to install new sub floors and build steps to our place. Sure makes the job a lot easier having this nailer It was easy to use right out of the box. Lightweight enough for me to handle without my arms getting tired. It might be more than we need for our small job but it has been really nice and making short time of the nailing process. Haven't played with the adjustments, but it all looks easy and self explanatory . Feels very sturdy and strong and good for heavy use on the job. October 14, 2014
Rated 5.0 out of 5.0 by Duofast Nail Gun The Duofast nailer is easy to operate and load. It is easily one of the top nail guns I've used. It never jams or misses and is dependable under heavy use. Great dependable nailer made in the U.S.A- definitely recommend! October 12, 2014
Rated 4.0 out of 5.0 by Light and Works Well and I wish it came with a Case at this price point Light and Works Well and I wish it came with a Case at this price point Tools required to get in and out of bump fire mode September 29, 2014
Rated 5.0 out of 5.0 by best tool ever This nailer was easy to use light weight easy to load glad I got this tool. September 6, 2014
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