General description The 40pcs Taps and Dies Set is a comprehensive toolkit designed for cutting threads, featuring both taps for internal threading and dies for external threading. This set is ideal for threading fasteners and repairing holes in cars and machinery. Constructed from industrial-grade tungsten steel, it ensures durability and high performance, making it suitable for a variety of materials. Technical specifications Material: Tungsten steel Set includes: 40 pieces of taps and dies Sizes: M3 to M12 Usage This tapping tool is versatile and can easily cut through various materials, including: Aluminum Iron Cast iron Alloy steel Carbon steel Abrasive steel Malleable cast iron Other information Includes a plastic carrying bag for easy storage and transportation Tools are well organized and easily accessible