Usage Tips: Our M14 x 1.5mm tap and die set is made of high-speed steel, providing reliable quality. These tools are heat treated and tempered for increased strength and durability, delivering consistent performance for your threading tasks. UNIVERSAL APPLICATION: 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 working with various metal materials. PRECISE & EFFICIENT: The tap and die set features precision-cut teeth that are CNC machined and heat treated to a hardness of 60 HRC, ensuring accurate threading and superior fastener performance. These characteristics contribute to a smoother, more efficient threading process, helping save 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 slightly due to different production batches, but 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 color variations between the product image and actual item. Measurement may vary by up to +/- 1-3 cm.