A premium aluminum alloy C-64 Hz tuning fork is used for medical diagnostics (neurology, sensory testing), sound therapy, vibration therapy (Otto tuning), and physics education, providing deep, grounding vibrations for assessing nerve sensitivity (like diabetic neuropathy), promoting relaxation, and demonstrating sound principles. Its lightweight, durable construction ensures accurate resonance for clinical assessments or wellness practices, often placed on bones for deep physical resonance.