The Treppus-2 vibroknife was a popular type of vibro-knife produced by Merr-Sonn Munitions, Inc.. A good example of a standard vibroblade, the Treppus-2 served as the basis for Merr-Sonn's M8 Combat Knife, which was used by the Galactic Republic's clone troopers during the Clone Wars.
The blade of the Treppus-2 was around fifteen centimeters. Often activated by a button located on the weapon's hilt, it could be programmed to activate right after being removed from its holster. Furthermore, the energy cell of the Treppus-2 was located within the hilt and provided ten hours worth of autonomy with a single charge. Optionally, a charging unit could also be installed in the knife's holster to make it operational at all times.
Behind the scenes
The Treppus-2 vibroknife was first mentioned in the new Star Wars canon in Rise of the Separatists, a 2019 supplement to Fantasy Flight Games' series of Star Wars Roleplaying products. It was originally introduced in the Star Wars Legends continuity as the Treppus-2 vibroblade in The Essential Guide to Weapons and Technology, authored by Bill Smith and published in 1997, and later made a full appearance in a flashback in Rebel Force: Renegade, a 2009 novel authored by Alex Wheeler.