In the case of Shakyamuni Nyorai depicted in Shakyamuni-in (one of the 12 sections ("in" in Japanese) constituting Taizokai mandala) in Taizokai ((Womb Realm) mandala, for example, the right and left hands face outward and inward, respectively, with the finger tips of both hands pointing upward.
例えば胎蔵界曼荼羅釈迦院の釈迦如来の場合、両手の指先を上に向け、右手は前に、左手は自分側に向ける。