With our M14 x 1.5mm tap and die set, you get reliable quality as it is made of high-speed steel. These tools undergo heat treatment and tempering processes for maximum strength, offering corrosion-resistant performance and durability that lasts through demanding threading tasks.UNIVERSAL APPLICATION: Expertly designed to create new threads or repair damaged threads on a wide array of metals. This versatile kit performs well on materials such as carbon steel, cast iron, aluminum, brass, copper, and stainless steel. It's a perfect tool for anyone working with various metal types.PRECISE & EFFICIENT: Our tap and die set features precision engineering for any fastener job. Each cutting tooth is precisely CNC machined and accurately heat treated to a hardness of 60 HRC, ensuring consistent threading and reliable fastener performance. These features make the threading process smoother and more efficient, 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 during operation. Apply appropriate lubricant to improve performance and extend the life of the tools.Note: Due to different production batches, product markings may vary slightly. This does not affect functionality or performance.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.