Drill & Tapping Charts Print this page
 

DRILL SELECTION CHART

> size 0.10 to 1.99

size 2.00 to 3.99

size 4.00 to 5.95

size 6.00 to 9.92

size 10.00 to 19.84

size 20.00 to 25.40

Drill Size

mm
Equiv*

Decimal
Inches
Equiv*

Metric

Fractional

Gauge

0.10

.0039

0.20

.0079

0.25

.0098

0.30

.0118

80

0.34

.0135

0.35

0.35

.0138

79

0.37

.0145

0.38

0.38

.0150

1/64

0.40

.0156

0.40

0.40

.0157

78

0.41

.0160

0.42

0.42

.0165

0.45

0.45

.0177

77

0.46

.0180

0.48

0.48

.0189

0.50

0.50

.0197

76

0.51

.0200

0.52

0.52

.0205

75

0.53

.0210

0.55

0.55

.0217

74

0.57

.0225

0.58

0.58

.0228

0.60

0.60

.0236

73

0.61

.0240

72

0.64

.0250

0.65

0.65

.0256

71

0.66

.0260

0.70

0.70

.0276

70

0.71

.0280

69

0.74

.0292

0.75

0.75

.0295

68

0.79

.0310

1/32

0.79

.0312

0.80

0.80

.0315

67

0.81

.0320

66

0.84

.0330

0.85

0.85

.0335

65

0.89

.0350

0.90

0.90

.0354

64

0.91

.0360

63

0.94

.0370

0.95

0.95

.0374

62

0.97

.0380

61

0.99

.0390

1.00

1.00

.0394

60

1.02

.0400

59

1.04

.0410

1.05

1.05

.0414

58

1.07

.0420

57

1.09

.0430

1.10

1.10

.0433

1.15

1.15

.0453

56

1.18

.0465

3/64

1.19

.0469

1.20

1.20

.0472

1.25

1.25

.0492

1.30

1.30

.0512

55

1.32

.0520

1.35

1.35

.0532

1.40

54

1.40

.0550

1.45

1.45

.0571

1.50

1.50

.0591

53

1.51

.0595

1.55

1.55

.0610

1/16

1.59

.0625

1.60

1.60

.0630

52

1.61

.0635

1.65

1.65

.0650

1.70

1.70

.0669

51

1.70

.0670

1.75

1.75

.0689

50

1.78

.0700

1.80

1.80

.0709

1.85

1.85

.0729

49

1.85

.0730

1.90

1.90

.0748

48

1.93

.0760

1.95

1.95

.0768

5/64

1.98

.0781

47

1.99

.0785

size 0.10 to 1.99

size 2.00 to 3.99

size 4.00 to 5.95

size 6.00 to 9.92

size 10.00 to 19.84

size 20.00 to 25.40

 

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