Knuckle
fist (Songarak Joomuk)
This is formed with either one
of the secondary knuckles of the forefinger or middle finger.
The attack is more effective to a minute vital spot at a close
distance if the snap motion is used properly.
Middle
knuckle fist (Jung Joomuk)
Push the secondary knuckle of
the middle forefinger out of the fore fist with the side of
the thumb. It is used in attacking the solar plexus, temple
and philtrum. The solar plexus is attacked in the same way as
an uppercut.
Fore-Knuckle fist (Inji Joomuk)
Push the secondary knuckle of
the forefinger out of an under fist with the thumb it is used
to attack the Adam's apple, temple and philtrum.
Thumb
Knuckle fist (Umji Joomuk)
The form is very similar to the
fore knuckle fist but the fore knuckle is not pushed out. It
is used to attack the point of the chin, philtrum, temple and
solar plexus.
This is used for attacking the skull, elbow
joint, ribs, solar plexus, philtrum and abdomen. It is
occasionally used for blocking.
Roll the four fingers into the palm,
pressing the forefinger slightly with the thumb. It is
effective in attacking the jaw, lips, temple, solar plexus
Adam's apple and philtrum. The second knuckles of the
forefinger, middle finger and rig fingers comprise the
attacking parts.