The SD-K4 assassin droid, also referred to as the Assassin Probe was a model of assassin droid that was used to infiltrate and eliminate enemies with ease. In addition to its sharp pincers, each SD-K4 droid was equipped to dispense large amounts of small assassin droids called Probe Killers, but only if the droid was destroyed. They were manufactured by the Techno Union during the Clone Wars and used by Death Watch in an attempt to assassinate Mandalorian leader, Satine Kryze. Years after this,