The ETBB30 is an angled-face tungsten bucking bar for rivets in corners, flanges, and sloped structure where a square block cannot sit flat. At 2.45 lb and 6 by 1.5 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.
The angled face tucks against the bucktail in inside corners and dodges the lightening-hole flanges in wing ribs, spots where a flat block simply will not seat. At roughly 2.5 times the density of steel it keeps full backing mass behind the rivet even in awkward access, which means cleaner heads and far less shock through your hand than a steel bar of the same reach.
- Dimensions: 6 x 1.5 x 0.5 in
- Weight: 2.45 lb (medium)
- Shape: Angled
- Best-fit access: edges, flanges, and lightening-hole flanges
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Questions about this bar
What is the ETBB30 tungsten bucking bar used for?
The ETBB30 is a angled tungsten bucking bar for rivets in corners, flanges, and sloped structure, where the angled face tucks against the bucktail a square block cannot reach. Hold it flat and square against the rivet tail so the shop head forms evenly.
How much does the ETBB30 bucking bar weigh and what size is it?
The ETBB30 weighs 2.45 lb and measures 6 by 1.5 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 ETBB30 made of tungsten instead of steel?
Tungsten alloy is about 2.5 times denser than steel, so the ETBB30 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.
