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 for creating or repairing 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: Each tap and die is precision CNC machined with cutting teeth accurately heat treated to a hardness of 60 HRC. This ensures clean, 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 stress on the tap. 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 tolerances may vary by +/- 1-3 cm.