The ETBB20 is a thin, low-profile tungsten bucking bar for shallow, confined access such as bottom wing skins. At 1.95 lb and 6 by 1 by 0.5 inches it packs the bucking mass of a much larger steel bar into a compact block, so shop heads form clean with less shock to your hand.
At a half inch thick or less it slides into shallow gaps, bottom skins, and confined bays while still putting real tungsten mass behind the rivet. Builders keep a low-profile bar on hand for the rivets a normal block bar is simply too tall to reach.
- Dimensions: 6 x 1 x 0.5 in
- Weight: 1.95 lb (medium)
- Shape: Low-Profile
- Best-fit access: tight corners and confined access
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Questions about this bar
What is the ETBB20 tungsten bucking bar used for?
The ETBB20 is a low profile tungsten bucking bar for thin, confined gaps and shallow bottom-skin access, slipping into a space a taller bar will not enter. Hold it flat and square against the rivet tail so the shop head forms evenly.
How much does the ETBB20 bucking bar weigh and what size is it?
The ETBB20 weighs 1.95 lb and measures 6 by 1 by 0.5 inches. You buy a bucking bar by weight, and tungsten packs that weight into a far smaller block than steel.
Why is the ETBB20 made of tungsten instead of steel?
Tungsten alloy is about 2.5 times denser than steel, so the ETBB20 delivers the same bucking mass as a steel bar more than twice its size. The compact mass means better access in tight structure and less shock to your hand.
