Description
1 9/16″ × 2 TPI BSW Tap
Overview
This high-precision 1 9/16″ × 2 Threads-per-Inch (TPI) British Standard Whitworth (BSW) hand tap is built for cutting or repairing coarse external threads on large-diameter shafts or fittings—especially when traditional Whitworth fasteners are involved.
Key Features
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Thread Specification: BSW form—featuring the classic 55° thread angle with rounded crests and roots for smooth engagement.
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TPI Details: Typically, a 1 9/16″ size pairs with a coarse thread pitch of 2 TPI, aligning with the BSW standard for larger diameters.
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Material & Construction: Likely crafted from High-Speed Steel (HSS), known for its durability and precision in threading tools.
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Tap Style: Available in various forms—taper, 2nd (plug), or bottoming—each designed for different stages in the threading process.
Applications & Benefits
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Repair & Fabrication: Ideal for restoring or creating large external threads—particularly useful for heritage equipment or bespoke engineering where BSW is still in use.
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Versatility in Use: Depending on the type (taper or plug), you can start threading a blind hole or follow up after initial threading to complete the cut.
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Precision & Fit: Accurately maintains traditional Whitworth tolerances, ensuring safe and correct assembly with legacy standards.









