Enhance your drilling projects with this high-performance Self Tightening Drill Chuck, crafted from premium high-speed steel for exceptional hardness and heat resistance. Designed with a special quenching treatment on key parts, this drill chuck offers improved durability and long-lasting reliability. Its automatic keyless tightening mechanism increases clamping force effortlessly, providing a secure grip on drill bits without the need for additional tools. Key Features: · Premium High-Speed Steel Construction: Ensures superior hardness and excellent hot hardness, delivering durability and consistent performance under heavy use. · Special Quenching Treatment: Key components undergo advanced heat treatment to enhance wear resistance and extend service life. · Automatic Keyless Tightening: Innovative self-tightening device automatically increases clamping force, offering practical and convenient operation. · Precise Clamping Range: Accommodates drill bits from approximately 1mm to 16mm (0.04 to 0.63 inches), suitable for a wide variety of drilling tasks. · High Accuracy: Features a precision tolerance of 0.01mm for stable and reliable bit holding during operation. · Wide Compatibility: Designed specifically for use with drilling machines, making it an essential accessory for both professional and hobbyist applications. · Hardness Rating: With a hardness of 52HB, this drill chuck balances toughness and durability for optimal performance. Specifications: · Material: High-Speed Steel · Hardness: 52HB · Accuracy: 0.01mm · Clamping Range: Approx. 1 ~ 16mm (0.04 ~ 0.63in) · Applicable Machine Tool: Drilling Machine Package Includes: · 1 x Self Tightening Drill Chuck This Self Tightening Drill Chuck combines precision engineering and durable materials to provide a reliable and efficient solution for your drilling needs. Its automatic tightening feature and robust construction make it an ideal choice for ensuring secure bit holding and improved productivity in various drilling applications.