Finally, note excerpts drawn from two of the responders and draw your own conclusions. Adjust the compressor air pressure, and the regulator at the rivet gun, if necessary, by adjusting the gun valve so that the impacts produced by a cupped rivet set, when held against a wood surface, just dents the wood. The 3X rivet gun gives you the ability to dial down the air pressure if you really have to. While I can easily set AD3 rivets with a 3X gun wide open, not everybody can do that. Kit includes: 3X Pneumatic Rivet Gun with Beehive Spring & Air Regulator (159.99) Rivet Set for Airstream Rivets (1/8' Brazier & 5/32' Modified Brazier) (10.99) Bucking Bar (19.99) Heavy Duty Rivet Cutter (45.99) Marvel Mystery Oil (4. 2X is 'light duty' and 3X is 'medium duty.' Those are the only two you should consider for. The center of this kit is our superb pneumatic rivet gun. The 2X-3X-4X designations for rivet guns are rough approximations of the stroke length and available power for that gun. Steel Domed Head Solid Rivets 18-8 Stainless Steel Domed Head Solid Rivets 18-8 stainless steel rivets are more corrosion resistant than those made of aluminum, brass, or copper. Familarity and experience play into the mix too. sm70-43010 5/16 rd head set SM70-43010 5/16 ROUND HEAD BUCKING RIVET SET FOR USE IN. An air hammer hits much harder and faster than an aircraft rivet gun - way too hard for the small rivets used in lights airplanes. Buck Rivets Aluminum Domed Head Solid Rivets These rivets are lightweight and have good corrosion resistance. Local deformation and accidental dents speak for themselves. Less hits mean less chance of slipping off a rivet. Comparatively speaking, a 3X requires fewer 'hits' to set a rivet than a 2X gun. That is important because the larger diameter and longer a rivet is, the more a rivet gun's potential slamming energy is dissipated before forming an acceptable rivet shop head. That is because a 2X gun is just not strong enough to easily set some of the longer AD4 rivets. 032 skin! For RV construction, I recommend a 3X as the all around best option. A 2X is best used on tiny AD3 rivets and a 6X slams so hard it will effortlessly punch through an. I am familiar with rivet guns ranging from 2X through 6X. I found my 2x gun didn't really have enough energy for the -4 rivets.

Buck rivet set for air hammers