Wood flame three

With the palm facing upward [supine], the point is located on the palmar surface, 3 fen to the inner [ulnar] side of and 2.5 fen above [distal to] the center of the joint of the second phalanx of the ring finger.

2.5 fen above [distal to] the Mù Yán Èr 木炎二 point.