Drill Size

Decimal

Drill Size

Decimal

Drill Size

Decimal

80

.0135

1/8

.1250

O

.3160

79

.0145

30

.1285

P

.3230

1/64

.0156

29

.1360

21/64

.3281

78

.0160

28

.1405

Q

.3320

77

.0180

9/64

.1406

R

.3390

76

.0200

27

.1440

11/32

.3438

75

.0210

26

.1470

S

.3480

74

.0225

25

.1495

T

.3580

73

.0240

24

.1520

23/64

.3594

72

.0250

23

.1540

U

.3680

71

.0260

5/32

.1562

3/8

.3750

70

.0280

22

.1570

V

.3770

69

.0292

21

.1590

W

.3860

68

.0310

20

.1610

25/64

.3906

1/32

.0312

19

.1660

X

.3970

67

.0320

18

.1695

Y

.4040

66

.0330

11/64

.1719

13/32

.4062

65

.0350

17

.1730

Z

.4130

64

.0360

16

.1770

27/64

.4219

63

.0370

15

.1800

7/16

.4375

62

.0380

14

.1820

29/64

.4531

61

.0390

13

.1850

15/32

.4688

60

.0400

3/16

.1875

31/64

.4844

59

.0410

12

.1890

1/2

.500

58

.0420

11

.1910

33/64

.5156

57

.0430

10

.1935

17/32

.5312

56

.0465

9

.1960

35/64

.5469

3/64

.0469

8

.1990

9/16

.5625

55

.0520

7

.2010

37/64

.5781

54

.0550

13/64

.2031

19/32

.5938

53

.0595

6

.2040

39/64

.6094

1/16

.0625

5

.2055

5/8

.6250

52

.0635

4

.2090

41/64

.6406

51

.0670

3

.2130

21/32

.6562

50

.0700

7/32

.2188

43/64

.6719

49

.0730

2

.2210

11/16

.6875

48

.0760

1

.2280

45/64

.7031

5/64

.0781

A

.2340

23/32

.7188

47

.0785

15/64

.2344

47/64

.7344

46

.0810

B

.2380

3/4

.7500

45

.0820

C

.2420

49/64

.7656

44

.0860

D

.2460

25/32

.7812

43

.0890

1/4

.2500

51/64

.7969

42

.0935

E

.2500

13/16

.8125

3/32

.0938

F

.2570

53/64

.8281

41

.0960

G

.2610

27/32

.8438

40

.0980

17/64

.2656

55/64

.8594

39

.0995

H

.2660

7/8

.8750

38

.1015

I

.2720

57/64

.8906

37

.1040

J

.2770

29/32

.9062

36

.1065

K

.2810

59/64

.9219

7/64

.1094

9/32

.2812

15/16

.9375

35

.1100

L

.2900

61/64

.9531

34

.1110

M

.2950

31/32

.9688

33

.1130

19/64

.2969

63/64

.9844

32

.1160

N

.3020

1

1.000

31

.1200

5/16

.3125