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Tight Fit Dimpling Fixture (3/32") EXCLUSIVE by Cleaveland Tool (SKU: DIE4263DF)

  • $41.20

Product Description

 Screws to workbench. 

  • Overhangs enough to allow rib flange to slide over. 
  • Machined springback 3/32" (#40) female die built in. 
  • Use standard 3/32" male die in rivet gun set or C-frame ram to make dimple from top. 
  • Only 1/4" high.


This tool is designed to work with the standard 3/32" male dimple die. Screw this fixture to the workbench leaving it overhang the edge of the bench by about 5/8". The rib will then slip over the fixture and allow alignment of the rivet hole with the center of the die. Using the standard male dimple die, tap the dimple in, and repeat for remainder of dimples. The male die can be held either in the ram of the c-frame and tapped with a hammer, or a .401 rivet gun set with a 3/16" hole in the end. Use caution to avoid a side load on the dies so that the male die pilot does not snap, or the female die does not pop out.

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Customer Reviews

Based on 3 reviews
David Woodward
Works well

Used this last night to dimple the last two holes in an RV flap rib. If you clamp it to a sturdy surface and use a 3x rivet gun to drive the male dimple die into the female tool, it works well. I unfortunately had the same result as another reviewer and the shank on the male dimple die broke where the small compression c-clip sits.

Would be nice if they included or sold a small steel ram with a hole that you could insert your dimple die into and pound on that, vs directly on the die. Guess it's a fairly easy thing to fabricate and will make one tonight.

Just the tool for those low clearance locations

I have to say I've found this tool invaluable in a couple of hard to deal with locations. In particular places like the last set of holes on the aft end of an aileron rib or every single hole on the u-channel aft spar of a sportsman flap. The only issue I've had is breaking the shank on the dimple die after a long bought of dimpling.

Mike Hayward
Inferior for Sportsman Ribs

Perhaps this tools will work great for thin ribs or a very narrow gap between the folded halves of skins, but dimpling the rudder ribs for the Glasair Sportsman are stout and no amount of hammering would do the job. I will probably never use it for dimpling ribs. Instead, I finally succeeded using the Avery vice grips with the die welded to the jaws. Simply grind the furthest extent of the die away until it fits comfortably within the radius of the webbing and squeeze away :-)