Vergnano katalog

DRILL SIZE CUTTING TAPS

P

P

P

55°

55°

55°

Whitworth thread BSW - BS 84

Whitworth pipe thread EN - ISO 228

Rp thread (BSPP) DIN EN 10226-1

Maximum core diam. [mm] D 1

Maximum core diam. [mm] D 1

Drill size [mm]

Drill size* [mm]

Drill size* [mm]

Pitch [TPI]

Pitch [TPI]

Pitch [TPI]

Maximum core diam. [mm] D 1

BSW

G

Rp

3/32" 48 1/8" 40 5/32" 32 3/16" 24 7/32" 24 1/4" 20 5/16" 18 3/8" 16 7/16" 14 1/2" 12 9/16" 12 5/8" 11 3/4" 10 7/8" 9

1,912 2,591 3,214 3,744 4,539 5,156 6,589 7,988 9,332

1,9

G 1/8" 28 1/4" 19 3/8" 19 1/2" 14 5/8" 14 3/4" 14 7/8" 14

8,848 11,890 15,395 19,172 21,128 24,658 28,418 30,931 35,579 39,592 42,005 45,485 51,428 57,296 63,392 67,080 72,866 79,216 85,566 91,662

8,8

1/8” 28 1/4” 19 3/8” 19 1/2” 14 3/4” 14

8,637 11,549 15,054 18,773 24,259

8,6

2,55

11,8

11,5 15,0 18,5 24,0

3,2 3,7 4,5 5,1 6,5 7,9

15,25

19 21

24,5

28,25 30,75

1" 11

9,25

1 1/8" 11 1 1/4" 11 1 3/8" 11 1 1/2" 11 1 3/4" 11

35,5 39,5 41,9

10,589 12,177 13,559 16,485 19,355 22,149 24,831 28,006 30,528 33,703 35,961 39,136

10,5

12

13,5 16,4

45,25

51 57

19,25

2" 11

1" 8

22

2 1/4" 11 2 3/8" 11 2 1/2" 11 2 3/4" 11

63,3

1 1/8" 7 1 1/4" 7 1 3/8" 6 1 1/2" 6 1 5/8" 5 1 3/4" 5

24,75 27,75

67

72,8 79,1 85,5 91,5

30,3 33,5 35,5

3" 11

3 1/4" 11 3 1/2" 11

39

98,012 98 3 3/4" 11 104,362 104 4" 11 110,712 110,5

1 7/8" 4,5 41,702 2" 4,5 44,877

41,5 44,5

2 1/4" 4 2 1/2" 4

50,465 56,815

50

56,3 61,5

2 3/4" 3,5 62,182 3" 3,5 68,532

68

(*) Drill size according to DIN 336

 1:16

 1:16

P

P

 1:16

P

60°

60°

55°

Conical gas thread Rc (BSPT) - DIN EN 10226-2

National pipe thread NPT - ANSI B1.20.1

Dryseal national pipe thread NPTF - ANSI B1.20.3

Drill size** [mm] D 1

Drill size** [mm] D 1

Drill size** [mm] D 1

Pitch [TPI]

Pitch [TPI]

Pitch [TPI]

Rc

NPT

NPTF

t1 [mm]

t1 [mm]

t1 [mm]

1/16" 28 1/8" 28 1/4" 19 3/8" 19 1/2" 14 3/4" 14 1" 11 1 1/4" 11 1 1/2" 11

6,2 8,2

11,9 11,9 17,7 18,1

1/16" 27 1/8" 27 1/4" 18 3/8" 18 1/2" 14 3/4" 14

6,15

12 12

1/16" 27 1/8" 27 1/4" 18 3/8" 18 1/2" 14 3/4" 14

6,15

12 12

8,5

8,5

11

11

17,5 17,6 22,9

11

17,5 17,6 22,9

14,5

14,5

14,5 17,8

18

24

17,85

23,5 29,5

25,3 30,6 32,9 32,9 37,2

23,2

23

23

23

1" 11,5 29

27,4 28,1 28,4 28,4

1" 11,5 29

27,4 28,1 28,4 28,4

38 44

1 1/4" 11,5 37,8 1 1/2" 11,5 44

1 1/4" 11,5 37,8 1 1/2" 11,5 43,8

2" 11

55,5

2" 11,5 56

2" 11,5 56

** For conical threads tapered drill holes are preferable. Please request specific tables.

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