Made of high-speed steel, this M14 x 1.5mm tap and die set is built for quality and durability. The tools are heat treated and tempered for maximum strength, providing reliable performance that lasts through demanding threading tasks. UNIVERSAL APPLICATION: Designed to create or repair threads on a wide range of metals, including carbon steel, cast iron, aluminum, brass, copper, and stainless steel. This versatile set is ideal for use across various metalworking applications. PRECISE & EFFICIENT: Each tap and die is precision CNC machined with cutting teeth accurately heat treated to 60 HRC. This ensures clean, accurate threading and superior fastener performance, making the process more efficient and reducing user effort. USER-FRIENDLY OPERATION: For best results, use a full turn forward and half turn back technique to reduce tap breakage. Apply appropriate lubricant during use to improve performance and extend tool life. Note: Product markings may vary 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 variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3 cm.