Dormer E524 HSS UNF Hand Tap No 4 UNF Second

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Dormer E524 HSS UNF Hand Tap No 4 UNF Second

Achieve accurate, clean threads in Unified National Fine (UNF) applications with the Dormer E524 HSS Hand Tap. Engineered from premium high-speed steel, this second tap delivers the durability and cutting precision required for professional and DIY threading tasks. Its design ensures smooth chip evacuation and reduced torque, making it ideal for through-hole threading where a near-complete thread form is needed. The Dormer E524 is the go-to choice for machinists, engineers, and hobbyists seeking consistent results in steel, aluminium, and non-ferrous metals.

- Manufactured from high-speed steel (HSS) for exceptional hardness and wear resistance

- Designed as a second tap for UNF threads, providing a refined cutting action after a taper or starter tap

- No. 4 UNF thread size with 48 TPI, perfect for fine-pitch applications

- Ground thread flutes deliver sharp, accurate cutting edges and smooth chip flow

- Heat-treated for optimum strength and long service life in both hand and machine use

- Conforms to Dormer’s exacting quality standards, ensuring reliable performance every time

For precision threading that you can depend on, this Dormer E524 tap is an indispensable addition to your tool kit.

GTIN: 7320760152867