Cougar Cutting Tools, Inc.

Tap Drill Sizes

Machine Taps

Machine Taps

Pipe Taps

Tap Size

Pitch

F or C

Tap Drill

Tap Size

Pitch

F or C

Tap Drill

Tap Size

Pitch

S or T

Tap Drill

0

80

NF

3/64

7/16

14

NC

U

1/16

27

NPT

D

1

64

NC

53

7/16

20

NF

25/64

1/8

27

NPT

R

1

72

NF

53

1/2

13

NC

27/64

1/4

18

NPT

7/16

2

56

NC

50

1/2

20

NF

29/64

3/8

18

NPT

37/64

2

64

NF

50

9/16

12

NC

31/64

1/2

14

NPT

23/32

3

48

NC

47

9/16

18

NF

33/64

3/4

14

NPT

59/64

3

56

NF

45

5/8

11

NC

17/32

1"

11.5

NPT

1 5/32

4

40

NC

43

5/8

18

NF

37/64

1 1/4

11.5

NPT

1 1/2

4

48

NF

42

11/16

11

NC

19/32

1 1/2

11.5

NPT

1 47/64

5

40

NC

38

11/16

16

NF

5/8

2"

11.5

NPT

2 7/32

5

44

NF

37

3/4

10

NC

21/32

6

32

NC

36

3/4

16

NF

11/16

1/8

27

NPS

S

6

40

NF

33

7/8

9

NC

49/64

1/4

18

NPS

29/64

8

32

NC

29

7/8

14

NF

13/16

3/8

18

NPS

19/32

8

36

NF

29

1"

8

NC

7/8

1/2

14

NPS

47/64

10

24

NC

25

1"

12

NF

59/64

3/4

14

NPS

15/16

10

32

NF

21

1"

14

NS

15/16

1"

11.5

NPS

1 3/16

12

24

NC

16

1 1/8

7

NC

63/64

1 1/4

11.5

NPS

1 33/64

12

28

NF

14

1 1/8

12

NF

1 3/64

1 1/2

11.5

NPS

1 3/4

14

20

NC

10

1 1/4

7

NC

1 7/64

2"

11.5

NPS

2 7/32

14

24

NF

7

1 1/4

12

NF

1 7/32

1/4

20

NC

7

1 3/8

6

NC

1 11/32

1/4

28

NF

3

1 3/8

12

NF

1 19/64

5/16

18

NC

F

1 1/2

6

NC

1 11/32

5/16

24

NF

I

1 1/2

12

NF

1 27/64

3/8

16

NC

5/16

1 3/4

5

NC

1 9/16

3/8

24

NF

Q

2"

4 1/2

NC

1 25/32

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