1. 10 Hands, or Temple Hand (Form). It is a Shotokan kata.
2. A samurai-era steel weapon mostly carried by the police. It has a single short side prong along a longer main prong. Legend has the application being to catch the samurai's sword between the main prong and side prong, turning the jutte to trap the sword blade bewteen the two prongs. More likely this truncheon was used to club or poke the opponent.
Also referred to as Jutte, from the Yama-Uke techniques representing the shape of a Jutte.