The Coniatore is a rounding coil dome made of tempered steel. The controlled machining process incorporates a smooth single piece of steel. This crimp tool is necessary to “choke” the top of the hull after the crimp start has been established. This stage readies it for the Ribassatore stage, which constricts the dome and folds even tighter.
The “Coniatore” is the second stage of the GAEP crimping process