Features: The 13mm Ratcheting SelfLocking Metal chucks Set features a secure ratcheting mechanism and durability alloy construction for enhanced safety and long lasting performances in demanding tasks. This versatile chucks set offer quick installation, compatibility with various power tools, and a compact design ideal for tight workspaces. Professional mechanics, enthusiasts, and workshop technicians will appreciate its precise grip for drilling and fastening operations across multiple materials. Optimize woodworking projects, metal fabrication, or home repairs with this adaptable chucks that maintains stability in both stationary workshops and mobile job sites. Built to withstand heavy duty applications, its corrosions resistant alloy head and ergonomic plastic housing ensures smooth transfer between drill bits while reducing hand fatigue. Specifications: Component: Plastic + Metal Metal chucks size: Approx.75x43mm/2.95x1.69inch 3Option Type; Package Includes: Pacakge A 1pc Drill chucks 1pc Round Handle Adapter 1pc Electric Wrench Adapter 1pc 6.35 Connecting Adapter Pacakge B 1pc Drill chucks 1pc Round Handle Adapter 1pc Electric Wrench Adapter 1pc 6.35 Connecting Adapter 1pc Square Connecting Adapter Pacakge C 1pc Drill chucks 1pc Round Handle Adapter 1pc Electric Wrench Adapter 1pc 6.35 Connecting Adapter 2pcs Rings 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.