Coring Systems Size Charts

PRODUCTS

CORING BITS

REAMING SHELLS

SHOES

GRINDING PINS

WEDGING TOOLS

COUPLING

ACCESSORIES

CUSTOM/SPECIALTY DRILLING TOOLS

Size Charts

  Outside
Diameter		 Outside
Diameter Gauge		 Inside
Diameter		 Inside
Diameter Gauge
Size inch mm inch max/min mm max/min inch mm inch max/min mm max/min
IEW/ IEW-S 1.470 37.34

1.475

1.465

37.47

37.21

 0.995 25.27

1.000

0.990

25.40

25.15
TT46/LTK46 1.815 46.10

1.820

1.810

46.23

45.97

 1.385 35.18

1.390

1.380

35.31

35.05
JKT48/LTK48 1.882 47.80

1.887

1.877

47.93

47.68

 1.385 35.18

1.390

1.380

35.31

35.05
A-TK 1.875 47.63

1.880

1.870

47.75

47.50

 1.202 30.53

1.207

1.197

30.66

30.40
B-TK 2.345 59.56

2.350

2.340

59.69

59.44

 1.601 40.67

1.606

1.596

40.79

40.54
AW-34 1.882 47.80

1.887

1.877

47.93

47.68

 1.315 33.40

1.320

1.310

33.53

33.27
BTW 2.345 59.56

2.350

2.340

59.69

59.44

 1.670 42.42

1.675

1.665

42.55

42.29
NTW 2.970 75.44

2.975

2.965

75.57

75.31

 2.215 56.26

2.220

2.210

56.39

56.13
A-W/L 1.875 47.63

1.880

1.870

47.75

47.50

 1.062 26.97

1.067

1.057

27.10

26.85
B-W/L 2.345 59.56

2.350

2.340

59.69

59.44

 1.433 36.40

1.438

1.428

36.53

36.27
N3-W/L 2.965 75.31

2.970

2.960

75.44

75.18

 1.775 45.09

1.780

1.770

45.21

44.96
N-W/L 2.965 75.31

2.970

2.960

75.44

75.18

 1.875 47.63

1.880

1.870

47.75

47.50
N2-W/L 2.965 75.31

2.970

2.960

75.44

75.18

 1.995 50.67

2.000

1.990

50.80

50.55
H3-W/L 3.763 95.58

3.770

2.756

95.76

95.40

 2.406 61.11

2.411

2.401

61.24

60.99
H-W/L 3.763 95.58

3.770

2.756

95.76

95.40

 2.500 63.50

2.505

2.495

63.63

63.37
P3-W/L 4.805 122.05

4.815

4.795

122.30

121.79

 3.270 83.06

3.275

3.265

83.19

82.93
 
P-W/L 4.805 122.05

4.815

4.795

122.30

121.79

 3.345 84.96

3.350

3.340

85.09

84.84
RW 1.485 37.72

1.490

1.480

37.85

37.59

 1.185 30.10

1.188

1.183

30.18

30.05
EW 2.345 59.56

1.880

1.870

47.75

47.50

 1.495 37.97

1.497

1.492

38.02

37.90
AW 2.345 59.56

2.350

2.340

59.69

59.44

 1.900 48.26

1.902

1.897

48.31

48.18
BW 2.965 75.31

2.970

2.960

75.44

75.18

 2.370 60.20

2.372

2.367

60.25

60.12
NW 3.615 91.82

3.620

3.610

91.95

91.69

 2.992 76.00

2.997

2.987

76.12

75.87
HW 4.627 117.53

4.632

4.617

117.65

117.27

 3.925 99.70

3.930

3.920

99.82

99.57
PW 5.650 143.51

5.660

5.640

143.76

143.26

 4.858 123.39

4.865

4.850

123.57

123.19
SW 6.790 172.47

6.800

6.780

172.72

172.21

 5.778 146.76

5.785

5.770

146.94

146.56
UW 7.800 198.12

7.815

7.785

198.50

197.74

 6.905 175.39

6.915

6.895

175.64

175.13
ZW 8.810 223.77

8.825

8.795

224.16

223.39

 7.905 200.79

7.915

7.895

201.04

200.53
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