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1" Mushroom Set (SKU: RSM10)

  • $24.80

Product Description

  • Stubby 2-1/16" mushroom flush set with .401" dia. shank.
  • The 1" dia. face is highly polished.
  • This is the ideal size for setting 3/32" & 1/8" flush head rivets.
  • US made - excellent quality.
  • See also RSMS-75.


Answering a common question about rubber guarded sets vs. non-guarded:

We don't generally recommend the sets with the rubber ring. The pressure applied to overcome the tension of the rubber, and get the set up against the aluminum is high. This pressure will end up making a dent in the skin if the bucker does not push back equally as hard, or slips off. All of this pressure makes it harder to keep the bar on the rivet. Instead we recommend using the steel set only, pinching it between the thumb and index finger while just touching the aluminum. This keeps the set from sliding and no pressure needs applied. The bucker simply needs to keep the set against the rivet, and when pulling the trigger the rivet will seem to melt beneath it.  

The metal only set is also shaped like a 'mushroom' so that the polished steel only contacts the rivet with about 3/8" diameter area. The rubber ringed sets do not allow you to see where the rivet is, so the sets are very flat hitting the skin in with about a 1" diameter area and spreading the rivet gun force in to the skin. With the increased pressure from the hand this is asking for skin deformation.

If riveting alone (we recommend just waiting until someone else is around to help) then the swivel set with the rubber surround is okay (said with some hesitation). It allows the user to concentrate on the bar rather than switching attention back and forth while the rivet gun is in action. Again we suggest using three hands for the best quality work.

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Customer Reviews

Based on 3 reviews
Chad Tremie
1" Mushroom set

Seems to work better than the on with rubber guard, has left no edgemarks like the other!

Not a stubby as depicted

The rivet set pictured is described as 2 1/16th” long. I wanted a stubby set as shown but the one you will receive is 2 1/2 “ long. I already own that size.
They offered to take it back but Ill pay it forward to another builder.


By far my favorite flush rivet set for skins. Tried the swivel flush set with red rubber shroud and the flush set with black rubber guard. I personally had trouble keeping those sets from walking off the manufactured head without putting undue pressure on the skin. I use a piece of blue painters tape on the 1" mushroom set. This adds just enough friction to keep the set from sliding. I also use a piece of removable tape (not rivet tape) over the manufactured head and surrounding skin. This keeps the rivet in place and flush with the surface. The crown on this 1" mushroom set focuses the pressure on the head of the rivet making for great looking flush rivets.