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All Products  ➞ Goliath Threading Tools ➞ Taps Hand & Machine ➞ HSS-Co5 Fluteless Taps ➞ BSW

3/8" x 16 BSW Fluteless HSS-Co5 Tap - Goliath

Part Number:B13AG
Brand:Goliath
Barcode:9349009019103
Pack Qty:1
Diameter (inch):3/8
Drill Diameter (mm):8.7
Overall Length (mm):80
Pitch (tpi):16
TPI:16
Tolerance:Medium
Standard:ISO529
Thread Form:BSW

About this item:
  • 3/8" x 16 BSW Fluteless HSS-Co5 Tap - Goliath
  • HSS-Co (Cobalt) Bright Finish BSW Fluteless Machine Tap.
  • HSS Fluteless (Roll Form) Taps.
  • Fluteless taps are also referred to as "Roll Form" or "Thread Flow" taps.
  • Unlike standard taps, fluteless taps create internal threads by pressure deformation, rather than by material removal.
  • As a result, no chips are formed as no material is removed.
  • The thread is formed by the tap in the ductile material creating threads that have a smoother surface and greater tensile strength under dynamic stress than cut threads.
  • It is essential to use a high quality lubricating fluid when using fluteless taps.
  • Materials with a minimum elongation of 5% and a tensile strength no greater than 1,000 N/mm2 are suitable for thread forming.
  • British Standard Whitworth 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.
  • Manufactured from HSS this fluteless tap is designed for use in medium tensile materials and is for hand or general machine use.
  • IMPORTANT - Fluteless Taps use different tapping drill sizes than standard taps.