Features Alloy steel material, strong blade, not easy to break, long service life, strong bite force, strong and durable The screw die set's surface of the die is smooth, without burrs, and easy to use. Round thread die with standard pitch, clear and neat threads, uniform force, not easy to slip. It is very suitable for bicycles repair, furniture assembly, machinery manufacturing, etc. It is a necessary tool for manual tapping operations. durable and corrosion free performance with satisfying longevity. Specification: Item Type: Round Die Material: Alloy Steel Specifications: M6x1, M7x1, M8x1.25, M8x1, M10x1.25, M10x1.5, M10x1, M12x1.75, M12x1.5, M12x1.25 Compatible: Machining or Correcting External Threads Package List: 10 x Die Package List 10 x Die