General description The 32 Piece Heavy Duty Tungsten Alloy Metric Tap and Die Set is crafted from hardened tungsten steel alloy, ensuring high strength and durability for long-term use. This set is designed to efficiently cut threads inside holes and form male and female portions of mating tools, making it ideal for repairing damaged internal and external threads. Technical specifications Material: Hardened tungsten steel alloy Sizes of taps included: M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 x 1.25, M10 x 1.5, M12 x 1.75 (3 of each size) Compatibility and accessories Compatible with metals such as aluminum, brass, carbon alloy steel, cast iron, and bronze Includes a die holder, thread gauge, slotted screwdriver, and tap wrench Storage and accessory set The set comes in a sturdy blue metal storage case, designed with an interior molded to securely fit each piece and keep them safe.