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, offering consistent performance that lasts through demanding 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 professionals and DIY users working with various metal materials.PRECISE & EFFICIENT: This tap and die set features precision-engineered cutting teeth that are CNC machined and heat treated to a hardness of 60 HRC. This ensures accurate threading and superior fastener performance, making the process smoother, faster, and more efficient.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 improve performance and extend tool life. Note: Product markings may vary slightly between 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 +/- 1-3 cm.