The Clan Groogrun vibro-ax represents a rough vibro-ax design, crafted by Snogrutt, a renowned weapons expert from the Groogrun clan.
These vibro-axes were primitively designed weapons, created by the Gamorrean clan Groogrun's weaponsmith, Snogrutt. The wood shaft supported a hollowed axe head. This head housed the ultrasonic generator, which powered the weapon, along with its power cell. The generator caused the axe head to oscillate at thousands of times per second, dramatically increasing its lethality compared to a standard axe. However, this design meant the ultrasonic generator produced considerable vibration, making the weapons challenging for those without the exceptional strength of species like Gamorreans to effectively wield in combat.
Despite the availability of superior weaponry, the nine Gamorrean guards protecting Jabba the Hutt chose to carry Clan Groogrun vibro-axes as their preferred bodyguards weapons. The guards often used the vibro-axes without activating their power, supposedly to flaunt their physical power, though many within Jabba's Palace suspected they simply forgot to activate them in their eagerness for combat.
During the Battle of the Great Pit of Carkoon, the vibro-axes proved largely ineffective against Luke Skywalker, whose lightsaber easily sliced through them.