The Grand Inquisitor's lightsaber

"Does yours do that?"

- Ezra Bridger to Kanan Jarrus

The Inquisitor's lightsaber was a double-bladed spinning lightsaber wielded by the Jedi Hunter known as the Grand Inquisitor, though it appeared to be standard issue for all Imperial Inquisitors.

Specifications
The weapon featured a ringed emitter which could partially detach from the cylindrical handgrip in the center, allowing the twin blades to rotate rapidly without effort from the wielder. For a Jedi hunter like the Inquisitor, this function likely served as a way to intimidate opponents, as well as deflect any form of frontal attack. However, this was also the weapon's primary weakness, as a lightsaber-wielding opponent could simply destroy the emitter itself and cut the weapon in half, as was demonstrated by Kanan Jarrus during his final duel with the Inquisitor aboard the Sovereign.

The handgrip could be removed entirely from the ring-shaped emitter, allowing the Force-imbued circlet of metal to be used as a throwing disc.

History
The Inquisitor wielded his lightsaber in several battles against Kanan Jarrus and Ezra Bridger. In a final battle against the Inquisitor, after his rescue, Kanan split the Inquisitor's weapon in two, causing the pieces to fall down a shaft. The two halves were then destroyed in an explosion when they fell into the Sovereign engines, followed shortly by the Inquisitor himself. It was also used to execute Imperial officers Cumberlayne Aresko and Myles Grint both at once on Moff Tarkin's orders, after their repeated incompetence in capturing the rebels.

Behind the scenes
The spinning lightsaber was an unused concept for the video game  The Force Unleashed. Furthermore, a similar saber, attributed to General Grievous, was previously made into a toy by Hasbro as part of The Clone Wars toy line.

Appearances

 * Star Wars: Galactic Defense
 * Star Wars Rebels: Spark of Rebellion
 * A New Hero
 * Droids in Distress
 * The Inquisitor's Trap
 * Servants of the Empire: Rebel in the Ranks
 * Ezra's Duel with Danger
 * Battle to the End
 * Ezra's Duel with Danger
 * Battle to the End
 * Ezra's Duel with Danger
 * Battle to the End
 * Battle to the End
 * Battle to the End
 * Battle to the End
 * Battle to the End