For the book of the same name, see Kagrenac's Tools (book).
Kagrenac's Tools are the legendary artifacts crafted by the Dwemer Tonal Architect Lord Kagrenac. The tools, Keening, Sunder, and Wraithguard, were created to tap into the power of the Heart of Lorkhan. The artifacts were seemingly misused by the Dwemer, leading to the race's disappearance. All three artifacts came into the possession of the Almsivi following the Battle of Red Mountain and were used by the Tribunal to make themselves into living gods. Keening and Sunder were subsequently lost during an annual pilgrimage to the Heart, sometime in the Third Era. During the Nerevarine's final battle with Dagoth Ur, all three artifacts were used to destroy the enchantments on the Heart of Lorkhan. Each tool had a specific purpose in helping gain power from the Heart. Without Wraithguard, it is dangerous to wield the weapons, often leading to the instant death of the wielder. Stories say that Sotha Sil created his own versions of the tools, which would have been lost after his demise—though some tales describe a Forgotten Hero reclaiming them.
Sunder, a hammer, was used to produce a specific amount and quality of power from the Heart. When struck by Sunder, the Heart would release godlike power. Circa 2E 582, Sunder had seemingly been shattered into several pieces and had left Almsivi's possession, although it would eventually be returned. After being taken from the Almsivi, Sunder was brought to the citadel of Vemynal by Dagoth Vemyn, an Ash Vampire. It was recovered by the Nerevarine in 3E 427.
Keening, a short blade, was used to flay and focus the power that Sunder produced. After being taken from the Almsivi, the blade was brought to the citadel of Odrosal by Dagoth Odros, an Ash Vampire. It was recovered by the Nerevarine in 3E 427.
In 4E 201, the mage Arniel Gane requested the delivery of it to Skyrim for research. By this time, the blade was no longer dangerous to wield without Wraithguard. Keening was briefly lost along the way when the courier died. Arniel used the blade on a warped soul gem to reproduce the events which led to the disappearance of the Dwemer; unfortunately, the experiment was a success, and Arniel vanished. The blade then passed into the possession of the Last Dragonborn, who had aided Arniel in his endeavor.
Wraithguard, a gauntlet, stopped the fatal effects of the other tools on the wielder. While accounts of its appearance vary, the god Vivec held it until it came into the possession of the Nerevarine.
- Kagrenac's Tools appeared in TES III: Morrowind. Keening also appeared in TES V: Skyrim, and Sotha Sil's versions appeared in Legends.