Series E500 HSS straight flute plug taps are ideal for hand or machine tapping in a wide variety of materials. The HSS construction offers excellent strength and rigidity whilst cutting. Features and Benefits HSS with bright finish for excellent cutting stength Heat and wear resistant for longer tool lifespan Straight flute for through or blind holes Typical Applications Through holes Blind holes Standards Manufactured to ISO 529 Notes Sizes M1 to M56 Plug - 1-2 pitch chamfer length