• BSW - British Standard Whitworth
  • The angle of thread is 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.
  • BOTTOMING TAPS have a lead of two threads and are used to ensure minimum thread run-out when tapping to the bottom of a blind hole.
  • Bottoming Taps are typically preceded by the use of a Taper or Intermediate Tap.
  • Manufactured from HSS this general purpose tap is designed for use in medium tensile materials and is for hand or general machine use.
Pitch24 tpi
Overall Length58 mm
Tapping Drill3.7 mm
SKU 3028-3/16B
Barcode # 9326518030850
Brand Bordo
Shipping Weight 0.0200kg
Type tools

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