Features Precision Fit Design: Features high-precision thread and tapered holes for a secure attachment, ensuring enhanced stability during operation Durable Electrophoretic Coating: The housing is treated with an anti-corrosive electrophoretic paint, providing protection even in harsh environments Superior Grip Technology: Utilizes specialized anti-th bearing to effectively convert key-applied torque into exceptional gripping power for reliable performance Enhanced Wear Resistance: Clamping jaws undergo special treatment to improve durability, ensuring long-lasting performance and reduced maintenance needs Exceptional Precision and Longevity: Designed to provide superior precision and durability, making it an essential addition to your milling tool kit Features: 1、High-precision thread and tapered holes can be tightly attached to the tool. 2、The housing is treated with electrophoretic paint, making the product anti- even in worst environment. 3、By using specialized anti-th bearing to convert key-applied torque into superior gripping. 4、The clamping jaws are specially treated to improve wear resistance. 5、Enjoying super precision and durability. Specification: Features: High-precision thread and tapered holes can be tightly attached to the tool. The housing is treated with electrophoretic paint, making the product anti- even in worst environment. By using specialized anti-th bearing to convert key-applied torque into superior gripping. The clamping jaws are specially treated to improve wear resistance. Enjoying super precision and durability. 1.5-10mm B12: 1.5-10mm denotes that clamp the drill between 1.5mm and 10mm, and B12 represents the hole behind the chuck is about 12MM taper. Specification: Condition: 100% Material: Stainl steel Clamping range: 1.5-10mm / 0.06-0.39in Package list: 1 * Drill Chuck 1 * Key Package List