The ETBB33 is a long hook tungsten bucking bar for reaching deep into channels and box structure to back rivets far from an open edge. At 8.25 lb and 11 x 2.75 x 1 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 long hooked shank carries dense tungsten past ribs and walls before the foot seats on the rivet tail. At 8.25 lb it brings heavy backing mass to large rivets and stays planted under the gun.
- Dimensions: 11 x 2.75 x 1 in
- Weight: 8.25 lb (extra-heavy)
- Shape: Hook
- Best-fit access: deep channels and boxed structure
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Questions about this bar
What is the ETBB33 tungsten bucking bar used for?
The ETBB33 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 ETBB33 bucking bar weigh and what size is it?
The ETBB33 weighs 8.25 lb and measures 11 by 2.75 by 1 inches. You buy a bucking bar by weight, and tungsten packs that weight into a far smaller block than steel.
Why is the ETBB33 made of tungsten instead of steel?
Tungsten alloy is about 2.5 times denser than steel, so the ETBB33 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.
