The ATI618 is a precision-machined, medium-mass aircraft rivet bucking bar cast from ductile iron and heat-treated to Rockwell 38–42 RC. Weighing 2.25 lbs, it provides exceptional shock absorption and a non-porous, highly polished finish that can be repolished repeatedly without losing hardness or structural integrity.
Tool Type: Airframe Rivet Bucking Bar
Weight: 2.25 lbs (1.02 kg)
Material: Heat-treated ductile iron (38–42 RC) for superior vibration damping and impact durability
Surface Finish: Highly polished, non-porous working faces with smooth radiused corners to protect aircraft skins from scarring or stress risers
Application: Used by aviation maintenance technicians to manually back solid aluminum rivets (-04, -05, and -06 dash sizes) across skin joints, rib flanges, and fuselage frames
