Industrial Catalog

Tap - Drill Recommendations

Metric Sizes

Inch Sizes (all measurements in inches)

Cutting Taps

Forming Taps

Cutting Taps

Forming Taps

Tap Size and Pitch mm

Tap Size and

Decimal Equiv.

Decimal Equiv.

Decimal Equiv. in.

Decimal Equiv. in.

Drill Size 3/64

Drill Size

Drill Size

Drill Size mm / in.

Pitch 0-80 1-64 1-72 2-56 2-64 3-48 3-56 4-40 4-48 5-40 5-44 6-32 6-40 8-32 8-36 10-24 10-32 12-24 12-28 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24 7/16-14 7/16-20 1/2-13 1/2-20 9/16-12 9/16-18 5/8-11 5/8-18 3/4-10 3/4-16

mm 1.25 1.45 1.60 1.75 2.05 2.50 2.90 3.30 3.70 4.20 5.00 6.00 6.70 7.00 8.50 8.70

.0469 .0595 .0595 .0700 .0700 .0785 .0810 .0890 .0935 .1015 .1040 .1065 .1130 .1360 .1360 .1470 .1590 .1770 .1800 .2010 .2130 .2570 .2720 .3125 .3320 .3680 .3906 .4219 .4531 .4844 .5156 .5312 .5781 .6562 .6875 .7656 .8125 .8750 .9219 .9844

54 51 51 47 43

.0550 .0670 .0670 .0781 .0785 .0890 .0905 .1015 .1024 .1130 .1142 .1250 .1280 .1495 .1520 .1719 .1770 .1990 .2010 .2280 .2340 .2900 .2950 .3480 .3580 .4040 .4130 .4682 .4823 .5312 .5315 .5807 .6004 .7031 .7188

M1.6 x 0.35 M1.8 x 0.35 M2 x 0.40 M2.2 x 0.45 M2.5 x 0.45 M3 x 0.50 M3.5 x 0.60 M4 x 0.70 M4.5 x 0.75 M5 x 0.80 M6 x 1.00 M7 x 1.00 M8 x 1.25 M8 x 1.00 M10 x 1.50 M10 x 1.25 M12 x 1.75 M12 x 1.25 M14 x 2.00 M16 x 2.00 M16 x 1.50 M18 x 2.50 M18 x 1.50 M20 x 2.50 M20 x 1.50 M22 x 2.50 M22 x 1.50 M24 x 3.00 M24 x 2.00 M27 x 3.00 M27 x 2.00 M30 x 3.50 M30 x 2.00 M33 x 3.50 M33 x 2.00 M36 x 4.00 M36 x 3.00 M39 x 4.00 M39 x 3.00

.0492 .0571 .0630 .0689 .0807 .0984 .1142 .1299 .1476 .1654 .1969 .2362 .2638 .2756 .3346 .3425 .4016 .4252 .4724 .5512 .5709 .6102 .6496 .6890 .7283 .7677 .8071 .8268 .8661 .9449 .9843

1.45 1.65 1.80 2.00 2.30 7/64 3.20 3.70 4.10

.0571 .0650 .0709 .0787 .0906 .1094 .1260 .1476 .1614 .1820 .2188 .2570 .2913 .2969 .3680 .3701 .4409 .4528 .5156 .5938 .6004 .6094 .6791

53 53 50 50 47 46 43 42 38 37 36 33 29 29 26 21 16 15

5/64

2.30

38

2.60

33

14

2.90

7/32

1/8

F

3.25

7.40

25 24

19/64

U

11/64

9.40

16

10.20 10.80 12.00 14.00 14.50 15.50 16.50 17.50 18.50 19.50 20.50 21.00 22.00 24.00 25.00 26.50 28.00 29.50 31.00 32.00 33.00 35.00 36.00

11.20 11.50 33/64 19/32 15.25 39/64 17.25

8 7 1

7 3 F

15/64

L

I

M

5/16

S T Y Z

* * * * * * * * * * * * * * * *

* * * * * * * * * * * * * * * *

Q U

25/64 27/64 29/64 31/64 33/64 17/32 37/64 21/32 11/16 49/64 13/16

15/32 12.25 17/32 13.50 14.75 15.25 45/64 23/32

7/8-9 7/8-14 Tap - Drill Recommendations 14 1-8 7/8 1-12 59/64 63/64 1-3/64 1-7/64 1-11/64 1-7/32 1-19/64 1-11/32 1-27/64 1-1/8 - 7 1-1/8 - 12 1-1/4 - 7 1-1/4 - 12 1-3/8 - 6 1-3/8 - 12 1-1/2 - 6 1-1/2 - 12 1.0469 1.1094 1.1719 1.2188 1.2969 1.3438 1.4219

1.0433 1.1024 1.1614 1.2205 1.2598 1.2992 1.3780 1.4173

* * * * * * * * * * * *

* * * * * * * * * * * *

Nominal Pipe Tap Pipe Tap Sizes (measurements in millimeters & inches) NPT & NPTF With Reamer Without Reamer NPSM NPSC NPSF Size

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

C .242 Q .332

A .234 21/64 27/64 11/16 57/64 1-1/8 1-15/32 1-45/64 2-11/64 9/16

.250

D .246

T .358 15/32

Q .332 R .339

*Contact Technical Service for recommendations. Hole sizes shown may not suit UNJ and MJ hole requirements.

7/16 9/16

7/16

7/16

.603 (special) 37/64

37/64

45/64 29/32 1-9/64 1-31/64 1-23/32 2-3/16

19 mm 61/64

18 mm 18 mm

59/64

59/64

1 – 11-1/2 1-1/4 –11-1/2 1-1/2 –11-1/2 2 – 11-1/2

1-13/64 1-5/32 1-5/32

1-35/64

1-1/2

1-25/32 1-47/64 —

2-1/4

2-13/64 —

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