- Compatibility: Designed for reduced diameter shafts with an inner diameter of .231 inches, ideal for H-Nocks or 6mm shafts. - Secure Fit: The H.E. Nock features a double-lock throat measuring .120 inches (3.05mm) and a recessed index, ensuring a secure and stable attachment to your arrow shaft. - Proven Durability: Each nock has been rigorously tested through 1000 shots, demonstrating exceptional durability and reliability for consistent performance in the field. - Made in the USA: Proudly manufactured in the United States, ensuring high-quality standards and craftsmanship. Use Scenarios: - Archery Competitions: Ideal for competitive archers seeking precision and reliability, allowing for consistent shooting and improved accuracy. - Hunting Applications: Perfect for hunters who require durable and dependable nocks that withstand the rigors of outdoor use and can handle multiple shots without failure. - Recreational Shooting: Suitable for casual archers looking to enhance their shooting experience with reliable nocks that fit their equipment seamlessly. Choose H.E. Nocks for a combination of strong performance, compatibility, and tested durability, making them an essential addition to your archery gear.