These head unstick and replacement tools can be used to unstick and replace heads on Western Digital hard drive models AAKS, AACS, EADS, EARS, EACS, EZRX and other models with 4 platters from following families:
DragFly4, Hulk and Jupiter.
Head unstick tool can help to unstick the heads from the platters and transfer them to the ramp safely. Head replacement tool is used to ensure that the heads don't touch each other in proces of replacement and to enable their easy mounting back to the ramp.
These tools don’t solve the head compatibility problem. They will only assure that the process of head unsticking and replacement goes easily on supported drives.
*This tool comes as a single piece, not in pair.