Features: Discover precise and durability with the metric left hand thread die set, crafted from alloy steel for superior hardness and long lastings performances. This set includes nine dies, each designing for high precise cutting on various metals like iron, aluminum, copper, and zinc. For professional technicians, DIYer enthusiasts, and engineers, this die set meets diverses threading needs with ease and efficiency. Perfect for use in mechanical manufacturing, repair work, and home crafting projects, ensuring reliable thread quality across applications. Featuring tapered locking holes to prevent loosening and clearly marked specifications for easy identification, this tool set is a must having addition to any toolkit. Specifications: Component:Alloy Steel Color:Silver Outdoor Diameter:Approx.25mm/0.98inch Thickness:Approx.10mm/0.39inch Package Includes: 9pcs/set Metric Threading Die note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.