"The Low Hammerfist Target Strike is used in the form Koryo, for example. In Koryo, bring both hands down in a circular motion with your left fist striking your open right palm at the bottom of this circle."@en . . "Low Hammerfist Target Strike"@en . "The Low Hammerfist Target Strike is used in the form Koryo, for example. In Koryo, bring both hands down in a circular motion with your left fist striking your open right palm at the bottom of this circle."@en .