Arm-mounted Drill

An unconventional piece of weaponry used by Shinobi from Yumegakure's Tenro clan.

The weapon itself is a large drill which the user wears on their underarm, usually in a dual fashion. The Arm-mounted Drill can be used as a conventional thrusting weapon, adding extra damage as the drill spins, but also allows for swift underground movement, enabling the user to ambush opponents from beneath.