Usage Tips: Our M14 x 1.5mm tap and die set is made of high-speed steel, ensuring quality and durability. These tools are heat treated and tempered for maximum strength, providing reliable performance that lasts through demanding threading tasks. UNIVERSAL APPLICATION: Expertly designed to create or repair threads on a wide range of metals. This versatile kit performs well on carbon steel, cast iron, aluminum, brass, copper, and stainless steel. It's an ideal tool for professionals and DIY enthusiasts working with various metal types. PRECISE & EFFICIENT: This tap and die set features precision-cut threading tools for accurate fastener applications. Each cutting tooth is CNC machined and heat treated to a hardness of 60 HRC, ensuring clean, precise threads. The result is a smoother, more efficient threading process that saves time and effort. USER-FRIENDLY OPERATION: For best results, use a full turn forward and half turn back technique to reduce the risk of tap breakage. Apply appropriate lubricant during use to enhance performance and extend tool life. Note: Product markings may vary between production batches; this does not affect functionality. Color: As shown Material: High-speed steel Package Contents: 1 x Tap and die set Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3 cm.