Durable and sturdy40-piece threading die set, made of tungsten steel, durable and long service life. PracticalSuitable for non-alloy steels ;s and weakly allied until 900 N/mm² of strength, such as steel, cast steel, cast iron, non-ferrous metals, plastics, soft and hard wood and sintered metals Answer to Customize Your NeedsThe set includes many different size dies for different faucets to meet your needs. your needs. Storage box Completely sorted for your needs. in a practical storage box. Delivered Packaged in a durable plastic case for easy storage. Tool Set A quality kit for easy storage. is an excellent component for a service vehicle or workshop. Long service life in daily workshop use. Description: made of tungsten steel, especially for fine threads Ideal for threading common materials with strength up to approximately 900 N/mm², such as steel, cast steel, cast iron, non-ferrous metals, plastics, soft and hard wood and sintered metals. A great combination for the customer service vehicle or for the workshop. In addition to the usual metric sizes, there are also many fine thread sizes. Highest quality tool for a long service life in daily workshop use