Usage Tips:With our M14 x 1.5mm tap and die set, you're of quality as it is made of high-speed steel. These tools undergo heat treatment and tempering processes for maximum strength and , offering -free performance and durability that outlasts your general threading tasks. UNIVERSAL APPLICATION: Expertly designed to create threads or repair threads on a wide array of metals. This versatile kit excels on materials such as carbon steel, cast iron, aluminum, brass, copper, and stainless steel. It's an perfect tool for anyone dealing with a variety of metal types in their work. PRECISE & EFFICIENT: Our tap and die set are precision tools for any fastener job. Each cutting tooth is precisely CNC machined and accurately heat treated to a hardness of 60 HRC, guaranteeing a high level of threading and fastener performance. These features make the threading process smoother and more efficient, ultimately saving you time and effort. USER-FRIENDLY OPERATION: Derived from practicality, we recommend full turn forward and then half back approach to prevent any damage to the tap during the threading operation. Additionally, add the appropriate lubricant for best results and to extend the life of your tap and die kit. Note:Due to different production batches, the markings on the products are inconsistent, which does not affect the use of the products. Colour:As Shown Material:high speed steel Package Contents: 1 * tap and die set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.