This is a modified version of Ken Tsuki where the striking surface is the middle knuckle of the index finger. The strike is formed by taking the traditional Ken Tsuki fist and then extending the index finger until the middle knuckle protrudes forward. The thumb then presses into the index finger from the side to force all of the fingers tightly together to offer greater stability to the fingers. This strike is used when pinpoint positioning yet powerful penetration is required in a target area. Targets might include the temple area, sternum, solar plexus, or the void space between two ribs, but many other possible targets can be easily discovered.