Features: Equipped with a ratcheting selflocking mechanism and durability metal construction, this chucks rod set ensures secure tool attachment and long last performances for demanding tasks. The versatile chucks systems offer quick bit changes and compatibility with drills, driver, and impacts wrenches, featuring easy installation for efficient workflow. Designed for enthusiasts, professional mechanics, and workshop technicians needing reliability torques transmission in repetitive fastening applications. Optimized for drilling, screwdriving, and processing across wood, metal, and plastic surfaces in homes garages, construction sites, or industrial workshops. Engineered with a lightweight hybrids metal plastic structure, this collet adapter set combines ergonomic handling with industrial grade durability for extended daily use. Specifications: Component: Plastic + Metal Size:Approx.75x43mm/2.95x1.69inch 4Option Type Application: It can be used for drilling and tightening operations of various materials such as wood, metal, plastic and is suitable for various scenarios such as home , factory production and maintenance. Package Includes: Pacakge A 1pc Drill chucks 1pc Square Connecting Adapter Pacakge B 1pc Drill chucks 1pc Round Handle Adapter Pacakge C 1pc Drill chucks 1pc Hexagonal Connecting Adapter Pacakge D 1pc Drill chucks 1pc Electric Wrench Adapter note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.