Bordo 1/4" x 20 Left Hand BSW Bottoming HSS Tap 3086-1/4B
Features: BSW - British Standard Whitworth; These Left Hand taps have an 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. ; Specifications:Diameter1/4"Pitch20 tpiLeadingBottomingOverall Length66 mmTapping Drill5.1 mm
Features: BSW - British Standard Whitworth; These Left Hand taps have an 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. ; Specifications:Diameter1/4"Pitch20 tpiLeadingBottomingOverall Length66 mmTapping Drill5.1 mm
$53.76
in 1 offers
Bordo 1/4" x 20 Left Hand BSW Bottoming HSS Tap 3086-1/4B
$53.76
Features: BSW - British Standard Whitworth; These Left Hand taps have an 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. ; Specifications:Diameter1/4"Pitch20 tpiLeadingBottomingOverall Length66 mmTapping Drill5.1 mm
Features: BSW - British Standard Whitworth; These Left Hand taps have an 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. ; Specifications:Diameter1/4"Pitch20 tpiLeadingBottomingOverall Length66 mmTapping Drill5.1 mm