Model

Hole

Core diameter

Bit

Reaming shell

Outer Core barrel

Inside core barrel

Rod

Length

OD

ID

OD

ID

Thickness

OD

ID

Thickness

OD

ID

Thickness

AQ

48

27

47.6

27

48

46

36

5

32.5

28.6

1.95

44.5

34.9

4.8

3ft

BQ

60

36.5

59.5

36.5

60

57.2

46

5.6

42.9

38.1

2.4

55.6

46

4.8

3ft

NQ

75.7

47.6

75.3

47.6

75.7

73

60.3

6.35

55.6

50

2.8

69.9

60.3

4.8

3ft

HQ

96

63.5

95.6

63.5

96

92.1

77.8

7.15

73

66.7

3.15

88.9

27.8

5.55

3ft

PQ

122.6

85

122

85

122.6

117.5

103.5

7.15

95.3

88.9

3.2

114.3

103.2

5.55

3ft