BSW Intermediate Chrome Tap by Bordo Replaceable Hinge Boring Head suit Blum Hinges Superior quality - Triple-distilled for

Superior quality - Triple-distilled for purity & consistency

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BSW Intermediate Chrome Tap by Bordo Replaceable Hinge Boring Head suit Blum Hinges Superior quality - Triple-distilled forAbout this item: Chrome Alloy BSW Intermediate Hand Tap. Used as thread chasers to clean an existing thread. They can also be used to create a new female thread in non ferrous metals and plastics. Chrome alloy taps are not suitable for creating precision, safety or critical threads. British Standard Whitworth has a thread angle of 55 degrees as opposed to 60 degrees in Metric and Unified threads. This thread form was developed by Sir Joseph Whitworth