Material: Made from iron material, this chuck key wrench offers sturdy durability and a comfortable grip. The sturdy materials ensure long-lasting performance even under frequent use in demanding environmentsPortable: Measuring 15cm in length, this quick ratchet wrench is easy to carry around in your toolbox or pocket. Its lightweight design does not compromise on strength or functionalityDesign: Featuring a quick ratchet design, this wrench allows for easy and efficient adjustment of drill chucks. The design significantly reduces the effort required to tighten or loosen chucks, making your work faster and more convenientVersatile: This ratchet wrench is designed to fit a wide range of drill chucks, including 10mm, 13mm, and 16mm sizes. Its adaptable nature makes it suitable for various drilling tasks, ensuring compatibility with multiple toolsPackage Includes: The package includes a ratchet wrench along with three different gear specifications to accommodate various chuck sizes Specification: Material: Iron Size Chart: 15cm/5.91inch Package Includes: 1 PieceRatchet Wrench 3 Pieces Drill Chucks(10/13/16mm) Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.