What is a common use for bucking bars in rivet installation?

Bucking bars are specifically designed tools used during the installation of solid shank rivets. The primary function of these bars is to provide a solid backing against which the rivet can be deformed or "bucked" after it has been driven. This deformation is crucial as it helps to shape the rivet tail, creating a secure and tight mechanical joint by spreading the tail material outward. This process enhances the structural integrity of the rivet installation.

While drilling precision holes and measuring rivet lengths are important tasks in the overall rivet installation process, they do not involve the direct application of bucking bars. Supporting the material being fastened is also essential, but bucking bars specifically target the shaping of rivet tails, distinguishing their use as a tool specifically for achieving a proper rivet formation and securing the joint effectively.