Nominal Diameter Threads Per Inch No. of Flutes A
Overall Length		 B
Thread Length		 C
Shank Diameter
Inch BSW BSF   Inch Inch Inch
1/16 60 --- 3 1.5/8 5/16 0.128
3/32 48 --- 3 1.13/16 1/2 0.128
1/8 40 --- 3 1.15/16 5/8 0.128
5/32 32 --- 3 2.1/8 3/4 0.159
3/16 24 32 3 2.3/8 7/8 0.189
7/32 24 28 3 2.3/8 7/8 0.221
1/4 20 26 4 2.1/2 1 0.253
9/32 20 26 4 2.1/2 1 0.284
5/16 18 22 4 2.3/4 1.1/8 0.315
3/8 16 20 4 2.15/16 1.1/4 0.377
7/16 14 18 4 3.5/32 1.7/16 0.323
1/2 12 16 4 3.3/8 1.21/32 0.367
9/16 12 16 4 3.19/32 1.21/32 0.429
5/8 11 14 4 3.13/16 1.13/16 0.480
11/16 11 14 4 4.1832 1.13/16 0.542
3/4 10 12 4 4.1/4 2 0.590
13/16 10 12 4 4.15/32 2 0.652
7/8 9 11 4 4.11/16 2.7/32 0.697
15/16 9 11 4 4.29/32 2.7/32 0.760
1 8 10 4 5./18 2.1/2 0.800
1.1/8 7 9 6 5.7/16 2.9/16 0.896
1.1/4 7 9 6 5.3/4 2.9/16 1.021
1.3/8 6 8 6 6.1/16 3 1.108
1.1/2 6 8 6 6.3/8 3 1.233
1.5/8 5 8 6 6.11/16 3.3/16 1.305
1.3/4 5 7 6 7 3.3/16 1.430
1.7/8 4.1/2 7 6 7.5/16 3.9/16 1.519
2 4.1/2 7 6 7.5/8 3.9/16 1.644
2.1/4 4 6 6 8.1/4 3.9/16 1.894
2.1/2 4 6 6 8.3/4 4 2.100
2.3/4 3.1/2 6 6 9.1/4 4 2.350
3 3.1/2 5 6 9.3/4 4.9/16 2.543
3.1/4 3.1/4 5 6 10 4.9/16 2.793
3.1/2 3.1/4 4.1/2 6 10.1/4 4.15/16 3.008
3.3/4 3 4.1/2 6 10.1/2 5.5/16 3.217
4 3 4.1/2 6 10.3/4 5.5/16 3.167

BSW BSF hand taps are supplied in sets of three pieces ( Taper, Second & Bottoming). You can order any Taper also.
We can Supply Left Hand Threading Taps also.

Taper Tap 4° per side
Second Tap 8° per side
Bottoming Tap 23° per side

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