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11 Different Types Of Taps To Select | Complete Guide
Hand Tapping | How To Guide
| BA British Association |
|---|
Nominal
dia. | Threads
per
inch | Tap
drill sizes
mm. |
No. 0
No.1
No. 2
No. 3
No. 4
No. 5
No. 6
No. 7
No. 8
No. 9
No. 10
No. 11
No. 12
No. 13
No. 14
| 1.00
0.90
0.81
0.73
0.66
0.59
0.53
0.48
0.43
0.39
0.35
0.31
0.28
0.25
0.23
| 5.10
4.50
4.00
3.40
3.00
2.65
2.30
2.05
1.80
1.55
1.40
1.20
1.05
0.90
0.80 |
