The Dormer E557 HSS Spiral Flute Tap is designed for high-performance threading in blind holes, ensuring superior chip evacuation and precise thread formation. Made from high-speed steel (HSS), this tap offers outstanding durability and cutting efficiency. Perfect for use with a variety of materials, including steel, stainless steel, aluminium, and other non-ferrous metals, the Dormer E557 tap excels in creating clean, accurate threads in even the toughest conditions. Its robust construction minimises the risk of tap breakage, enhancing both productivity and safety. Available in a range of sizes, the Dormer E557 HSS Spiral Flute Tap offers versatility for various threading requirements. Features & Benefits • High speed steel • Spiral flute geometry • Thread M • Right hand rotation/cutting • ISO 529 Specifications • Thread Diameter: M8 • Type: Spiral Flute • Pitch: 1.25mm • Overall Length: 72mm