The ETBB50 is an offset stepped tungsten bucking bar for backing rivets across changing steps and lands in close structure. At 3.85 lb and 5.5 x 2.5 x 0.9 inches, it brings the backing mass of a much larger steel bar to the rivet, so shop heads form clean with less shock to your hand.
A stepped, notched profile lets the bar follow a change in level while keeping tungsten mass behind the rivet tail. At roughly 2.5 times the density of steel it stays planted under the gun for clean shop heads.
- Dimensions: 5.5 x 2.5 x 0.9 in
- Weight: 3.85 lb (heavy)
- Shape: Offset
- Best-fit access: stepped and recessed structure
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Questions about this bar
What is the ETBB50 tungsten bucking bar used for?
The ETBB50 is a heavy tungsten bucking bar for larger rivets and thick structure, delivering maximum backing mass in a hand-held bar. Hold it flat and square against the rivet tail so the shop head forms evenly.
How much does the ETBB50 bucking bar weigh and what size is it?
The ETBB50 weighs 3.85 lb and measures 5.5 by 2.5 by 0.9 inches. You buy a bucking bar by weight, and tungsten packs that weight into a far smaller block than steel.
Why is the ETBB50 made of tungsten instead of steel?
Tungsten alloy is about 2.5 times denser than steel, so the ETBB50 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.
