Key Benefits

• Carry high impact in a compact weapon
• Deploy with no equipment
• Strike silently in confined spaces
• Scale from non-lethal to lethal

Curl the Fingers

• Curl fingers tightly into the palm
• Tighten the fist for maximum structure
• Avoid a loose fist that loses integrity
• Build tension before contact

Lock the Thumb

• Lock thumb over index and middle fingers
• Never tuck the thumb inside
• Protect the thumb from injury
• Reinforce overall alignment

Align Knuckles

• Align the 2nd and 3rd knuckles horizontally
• Create the densest striking surface
• Avoid misaligned knuckles that lose power
• Strike through index and middle

Straighten the Wrist

• Keep the wrist straight with the forearm
• Never bend up, down, or sideways
• Prevent wrist fracture on impact
• Transfer force cleanly through the joint

Kinetic Chain

• Tension the forearm and deltoid
• Drive power from the ground up
• Connect impact through the radius
• Deliver force through 2nd and 3rd metacarpals

Common Faults

• Tucking the thumb inside risks injury
• Bending the wrist invites fracture
• Misaligning knuckles cuts power
• A loose fist collapses on contact

Bone Structure

• Know index and middle as primary impact
• Route force into the radius
• Understand metacarpals carry the strike
• Train alignment to reduce fracture risk