The Tap HSS 18mm x 1.5mm is a high-speed steel (HSS) tap designed for cutting threads into materials like metal, steel, and alloys. With a 18mm diameter and a 1.5mm pitch, it is used for creating internal threads (female threads) for bolts or screws in machinery or mechanical projects. The HSS construction ensures durability and resistance to heat, making it ideal for precision tapping in tougher materials. It comes packaged in a single card, offering an effective solution for threading applications.