Bordo BSW Taper Chrome Alloy Hand Tap

• Chrome Alloy BSW Taper 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 in 1841.
• The thread form has rounded roots and crests and is specified in BS84:1956.
• The major diameter of external thread and pitch are specified by a simple numerical value (most commonly measured in millimetres).
• Taper Taps have a lead of eight threads and are used as a starting tap in difficult or high precision holes.

About Taper Taps

• Taper Taps have a lead of eight threads and are used as a starting tap in difficult or high precision holes.
• Manufactured from chrome alloy this general purpose tap is designed for use in medium tensile materials and is for hand or general machine use.

About BSW (British Standard Whitworth)

• This thread form was developed by Sir Joseph Whitworth in 1841.
• The thread form has rounded roots and crests and is specified in BS84:1956.
• The thread angle for BSW is 55° as opposed to 60° in Metric and Unified threads.