Review on Tungsten Ergonomic Bucking Bar BB 5 by Eric Avina

Excellent for tight spaces. I also have a BB-7 which is another great tungsten rod but being 4 inches long and thin it doesn't offer much bulk if you need to use it sideways on the end. This BB-5 gets a lot more mass under the rivet as it has a more compact shape which makes riveting much better/faster.