This 32-piece thread cutting set is made of high-quality steel with high abrasive properties for durability, precision and durability. It is suitable for very high strength unalloyed steels as well as low alloyed steels, cast iron and non-ferrous materials. The set includes many different size tools for different threaded holes to meet your different needs. All threading tools and tools are clearly marked so you can quickly find the right size. It comes in a perfectly sorted and easy-to-carry plastic box, so you can use and store it conveniently. Great helper for professional mechanics and workshop work, adjusting external screws and doing machine maintenance etc. Material: alloy steel Color as shown Package Contents: 1 x Tap and Die Tapping 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.