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All Products ➞ Bordo ➞ Taps & Dies ➞ HSS Hand and Machine Taps ➞ HSS Tap BSW
2" x 4.5 BSW Bottoming HSS Tap
| Part Number: | 3028-2B |
| Brand: | Bordo |
| Barcode: | 9326518101048 |
| Pack Qty: | 1 |
| Diameter (inch): | 2 |
| Drill Diameter (mm): | 44.5 |
| Lead: | Bottoming |
| Overall Length (mm): | 200 |
| Pitch (tpi): | 4.5 |
| Thread Form: | BSW |
About this item:
- 2" x 4.5 BSW Bottoming HSS Tap
- HSS BSW Bottoming Hand and Machine Tap.
- 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.
- 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.