Eight indent crimping is a requirement for tools conforming to MIL-DTL-22520, in particular: M22520/1-01, M22520/2-01, M22520/7-01 & M22520/39-01.
These tools incorporate an eight indent crimp configuration and full cycle ratchet control. They are proven to provide a high tensile strength crimp joint and low electrical resistance.
A specific turret head or positioner will ensure repeatable positioning of the indents in the contacts crimping zone. A data plate on the turret head or positioner provides information on the wire sizes and applicable tool selector settings.
With the optimum indentor setting selected for wire and contact it is often possible to achieve a crimp joint that exceeds the UTS (Ultimate Tensile Strength) of the wire.
Special indentor configurations are also available.