#4 - 40 Bottoming Taps, High Speed Steel (PACK OF 3)- National Coarse Thread
Model #: TAB-4-40BP
Price: $8.10
Description: #4-40 HS Bottoming Tap (PACK OF 3)
- Thread Diameter: #4
- Threads per Inch: 40
- High Speed Steel. Ground Thread.
- Recommended Drill Size: #43
- Please note that not all bottoming taps are flattened at the end.
Bottoming taps have 1 to 1-1/2 threads of lead, for threading close to the bottom of a blind hole.
Please note that not all bottoming taps are flattened at the end.
Some manufacturers leave a point that you may have to grind off if going very close to the bottom of a hole.