Dormer E531 HSS BSW Hand Tap 3/8 BSW Second

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Dormer E531 HSS BSW Hand Tap 3/8 BSW Second

Precision threading is the cornerstone of any reliable assembly, and this Dormer E531 hand tap delivers exactly that for British Standard Whitworth applications. Engineered from high-speed steel, it is designed to cut clean, accurate threads in a wide range of materials, offering durability and consistent performance whether you are working in a professional workshop or on a demanding job site. As a second (intermediate) tap, it excels at forming full threads after the taper tap has started the cut, making it an essential tool for through-hole and blind-hole threading tasks where a deep, precise thread is required.

- Manufactured from premium High-Speed Steel (HSS) for long-lasting edge retention and resistance to wear

- Precision ground to create accurate 3/8 inch British Standard Whitworth (BSW) threads with a 55-degree thread angle

- Designed as a second tap, ideal for finishing threads after initial cutting with a taper tap

- Suitable for use in both manual hand tapping and machine-assisted operations

- Features a bright surface finish that reduces friction and aids chip clearance

- Compatible with a wide variety of materials including steel, aluminium, brass, and cast iron

- Backed by the trusted Dormer brand heritage, known for engineering excellence in threading tools

Choose the Dormer E531 for dependable, repeatable threading that meets the exacting standards of British Whitworth threads.

GTIN: 7320760098738