Briggs Standard Pipe Taps - Drill Sizes

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Drill sizes for Briggs Standard Pipe taps

Drill sizes for Briggs Standard Pipe taps for direct tapping without reaming can be taken from the table below:

Size of Pipe (inches)	Size of Pipe (inches)
1/8	21/64
1/4	7/16
3/8	9/16
1/2	45/64
3/4	29/32
1	1 9/64
1 1/4	1 31/64
1 1/2	1 47/64
2	2 13/64
2 1/2	2 5/8
3	3 1/4
3 1/2	3 47/64
4	4 15/64

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