This is the article on the weapon. For the Sunagakure ninja, head to Satetsu.

Iron Sand (砂鉄, Satetsu, literally meaning: Sand Iron) is the most feared weapon in the history of Sunagakure,[1] which was developed by the Third Kazekage.


After studying the sand manipulation abilities of Shukaku's jinchūriki, the Third Kazekage was able to imitate this ability using iron powder instead of sand, and his special magnetic powers. He often moulded the iron powder into weapons and used them as part of his main fighting style.

When used in sufficient quantities, this iron sand can be equipped in various ways in order to create useful techniques ranging from large structures to bullet-like particles and multiple striking branches. Sasori took full advantage of this through the use of his puppet of the Third Kazekage.

The iron sand can also clot up the joints of puppets, making them unusable in battle[2] as long as the user's magnetic field is in effect, even bypassing a Chakra Shield.

Shinki is able to control and change the shape of the iron sand through an electromagnetic field.[3]

Utilised Techniques


  • When Sasori made the Kazekage into a puppet, he drenched the sand in poison, making it more lethal in battle.
  • Magnetite, the main component of Iron Sand, is about 2 times denser than silica, which is the main component of sand, while gold is about 3.7 times denser than magnetite.


  1. Naruto chapter 268, page 9
  2. Naruto chapter 268, page 6
  3. Boruto episode 61