Features High-Precision Attachment: Ensures tight attachment to the tool with high-precision thread and tapered holes, providing reliable and secure performance. Anti- Housing: The electrophoretic paint treatment on the housing ensures anti- properties, making it suitable for use in various environments, including harsh conditions. Superior Gripping Power: Utilizes specialized anti-th bearing to convert key-applied into superior gripping, enhancing stability and control during use. Enhanced Wear Resistance: Specially treated clamping jaws improve wear resistance, prolonging the product's lifespan and ensuring consistent performance. Super Precision and Durability: Delivers super precision and durability, providing long-lasting and reliable use for various milling and drilling applications. 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 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 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: Stainless steel Clamping range: 1.5-10mm / 0.06-0.39in Package list: 1 * Drill Chuck 1 * Key Package List