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Diamond Core Drill Bits

 

E-Gauge Core Bits

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

EWG

1.475/1.465

37.46/37.21

0.850/0.840

21.59/2134

EWT

1.475/1.465

37.46/37.21

0.910/0.900

23.11/22.86

 

 

A-Gauge Core Bits

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

AQ

1.880/1.870

47.75/47.50

1.067/1.567

27.10/26.85

AQ-RSG

1.895/1.885

48.13/47.88

1.067/1.057

27.10/26.85

ATW

1.880/1.870

47.75/47.50

1.190/1.80

30.22/29.97

AQTK

1.880/1.870

47.75/47.50

1.206/1.196

30.63/30.38

 

 

B-Gauge Core Bits

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

BQ

2.350/2.340

59.69/59.44

1.438/1.428

36.52/36.27

BQ-RSG

2.365/2.355

60.07/59.82

1.438/1.428

36.52/36.27

BQ-2.400

2.405/2.395

61.09/60.38

1.438/1.428

36.52/36.27

BQ3

2.350/2.340

59.69/59.44

1.325/1.315

33.65/33.40

BQTK

2.350/2.340

59.69/59.44

1.606/1.596

40.79/40.54

BWM

2.350/2.340

59.69/59.44

1.660/1.650

42.16/41.91

TBW

2.350/2.340

59.69/59.44

1.785/1.775

45.34/45.09

 


 

N-Gauge Core Bits

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

NQ

2.970/2.960

75.44/75.19

1.880/1.870

47.75/47.50

NQ-RSG

2.985/2.975

75.82/75.57

1.880/1.870

47.75/47.50

NQ-3.032

3.037/3.027

77.14/76.89

1.880/1.870

47.75/47.50

NQ2

2.970/2.960

75.44/75.19

2.000/1.990

50.80/50.55

NQ2-RSG

2.985/2.975

75.82/75.57

2.000/1.990

50.80/50.55

NQ2-3.032

3.037/3.027

77.14/76.89

2.000/1.990

50.80/50.55

NQ3-(NQTT)

2.970/2.960

75.44/75.19

1.870/1.770

45.21/44.96

NQ3-RSG

2.985/2.975

75.82/75.57

1.870/1.770

45.21/44.96

NQ3-3.032

3.037/3.027

77.14/76.89

1.780/1.770

45.21/44.96

NWG,NWM,NX

2.970/2.960

75.44/75.19

2.160/2.150

54.86/54.61

TNW

2.970/2.960

75.44/75.19

2.394/2.384

60.80/60.55

 

H-Gauge Core Bits

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

HQ

3.770/3.755

95.76/95.38

2.505/2.495

63.63/63.38

HQ-RSG

3.790/3.755

96.27/95.89

2.505/2.495

63.63/63.38

HQ-3.830

3.840/3.825

97.54/97.16

2.505/2.495

63.63/63.38

HQ-3.895

3.897/3.882

98.98/98.60

2.505/2.495

63.63/63.38

HQ3 (HQTT)

3.770/3.755

95.76/95.38

2.411/2.401

61.24/60.99

HQ3-RSG

3.790/3.775

96.27/95.89

2.411/2.401

61.24/60.99

HQ3-3.830

3.840/3.825

97.54/97.16

2.411/2.401

61.24/60.99

HQ3-3.895

3.897/3.882

98.98/98.60

2.411/2.401

61.24/60.99

HWG

3.897/3.882

98.98/98.60

3.500/2.995

76.33/76.08

HWF (Long type)

3.912/3.897

99.36/98.98

3.005/2.995

76.33/76.08

P-Gauge Core Bits

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

PQ

4.815/4.795

122.30/121.80

3.350/3.340

85.09/84.84

PQ3

4.815/4.795

122.30/121.80

3.275/3.265

83.18/82/93

PWF (Short Type)

4.735/4.715

120.27/119.76

3.635/3.620

92.33/91.95

PWF (Long Type)

4.755/4.740

120.78/120.40

3.635/3.620

92.33/91.95

             

 

S-Gauge Core Bits

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

SWF (Short Type)

5.735/5.715

145.67/145.16

4.447/4.432

112.95/112.57

SWF (Long Type)

5.775/5.740

146.18/145.80

4.447/4.432

112.95/112.57

SWF Coreline (Long Type)

5.755/5.740

146.18/145.80

4.220/4.205

107.19/106.81

 

 

"T" , "TT" and "T2" Type Metric Core Bits

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

T2-76

2.997/2.987

76.12/75.87

2.434/2.424

61.82/61.57

T2-86

3.391/3.381

86.13/85.88

2.828/2.818

71.83/71.58

T2-101

3.981/3.971

101.12/100.87

3.300/3.290

83.82/83.57

 

"T6" Type Metric Core Bits

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

T6-116

4.575/4.560

116.20/115.82

3.667/3.657

93.14/92.89

T6-131

5.165/5.150

131.19/130.81

4.257/4.247

108.13/107.88

T6-146

5.755/5.740

146.18/145.80

4.847/4.837

123.11/122.86

 

"B" Type (ISO 3552-1) Metric Core Bits

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

B36

1.422/1.412

36.12/35.87

0.857/0.849

21.82/21.57

B46

1.818/1.808

46.18/45.92

1.253/1.243

31.82/31.57

B56

2.210/2.200

56.13/55.88

1.647/1.637

41.83/41.58

B66

2.603/2.593

66.12/65.87

2.040/2.030

51.81/51.56

B76

2.997/2.987

76.12/75.87

2.434/2.424

61.82/61.57

B86

3.391/3.381

86.13/85.88

2.828/2.818

71.83/71.58

B101

3.981/3.971

101.12/100.87

3.418/3.408

86.82/86.57

B116

4.575/4.560

116.20/115.82

4.009/3.999

101.83/101.58

B131

5.165/5.150

131.19/130.81

4.599/4.589

116.82/116.57

B146

5.755/5.740

146.18/145.80

5.190/5.180

131.82/131.57

 

 

E-Gauge Reaming shells

Size

Set Diameter

inch

mm

EWG,EWM,EWT

1.490/1.480

37.85/37.59

 


 

 

A-Gauge Reaming shells

Size

Set Diameter

inch

mm

AQ,AQTK,AWG,AWM,AWT

1.895/1.885

48.13/47.88

 

 

B-Gauge Reaming shells

Size

Set Diameter

inch

mm

BQ,BQTK,BWG,BWM,BWT,TBW

2.365/2.355

60.07/59.82

 

 

B-Gauge Oversize Reaming shells

Size

Set Diameter

inch

mm

BQ(2.400), BQTK(2.400)

2.405/2.395

61.09/60.83

 

 

N-Gauge Reaming shells

Size

Set Diameter

inch

mm

NQ, NWM,NX,NMLC,TNW

2.985/2.975

75.82/75.57

 

 

 

N-Gauge Oversize Reaming shells

Size

Set Diameter

inch

mm

NQ(3.032)

3.037/3.027

77.14/76.89

 

 

H-Gauge Reaming shells

Size

Set Diameter

inch

mm

HQ

3.790/3.775

96.27/95.89

HWF,HWG,HWT

3.912/3.902

99.36/99.11

 

 

H-Gauge Oversize Reaming shells

Size

Set Diameter

inch

mm

HQ(3.830)

3.840/3.825

97.54/97.16

 

 

P-Gauge Reaming shells

Size

Set Diameter

inch

mm

PQ

4.835/4.820

122.81/122.43

 

B(ISO 3552-1),T,TT,T2,T6 and WL-Type Metric Reaming Shells

Size

Set Diameter

inch

mm

B36

1.433/1.425

36.40/36.20

B46

1.827/1.819

46.40/46.20

B56

2.220/2.212

56.40/56.20

B66

2.614/2.604

66.40/66.14

B76,T2-76

3.012/3.000

76.50/76.20

B86,T2-86

3.406/3.394

86.50/86.20

B101,T2-101

3.996/3.984

101.50/101.20

B116,T6-116

4.590/4.575

116.60/116.20

B131,T6-131

5.180/5.165

131.57/131.19

B146-T6-146

5.772/5.757

146.60/146.22

 

 

Standard Casing Shoes

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

RW*

1.475/1.465

37.46/37.21

1.188/1.183

30.18/30.05

EW*

1.880/1.870

47.75/47.50

1.497/1.492

38.02/37.90

AW*

2.350/2.340

59.69/59.44

1.902/1.897

48.31/48.18

BW

2.970/2.960

75.44/75.19

2.377/2.367

60.38/60.12

NW*

3.620/3.610

91.95/91.70

2.997/2.987

76.12/75.87

NW**CDDA

4.632/4.617

117.65/117.27

3.930/3.920

99.82/99.57

HW*DCDMA

4.632/4.617

117.65/117.27

3.980/3.970

101.09/100.84

PW**

5.660/5.640

143.76/143.26

4.865/4.850

123.57/123.19

PWT

5.660/5.640

143.76/143.26

4.865/4.850

123.57/123.19

SW*

6.800/6.780

172.72/172.21

5.948/5.933

151.08/150.70

UW*

7.815/7.785

198.50/197.74

6.916/6.896

175.67/175.16

ZW

8.825/8.795

224.15/223.40

7.987/7.967

202.87/202.36

 


 

 

Metric Casing Shoes

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

46mm

1.818/1.808

46.18/45.92

1.462/1.452

37.13/36.88

56mm

2.210/2.200

56.13/55.88

1.855/1.845

47.12/46.87

66mm

2.603/2.593

66.12/65.87

2.249/2.239

57.12/56.87

76mm

2.997/2.987

76.12/75.87

2.643/2.633

67.13/66.88

86mm

3.391/3.381

86.13/85.88

3.307/3.027

75.14/76.89

101mm

3.985/3.970

101.22/100.84

3.460/3.445

87.88/87.50

116mm

4.575/4.560

116.20/115.82

4.063/4.048

103.20/102.82

131mm

5.165/5.150

131.19/130.81

4.700/4.685

119.38/119.00

146mm

5.755/5.740

146.18/145.80

5.244/5.229

133.20/132.81

 

 

Standard Casing Bits(For use with DCDMA and CDDA Standard Casing

Size

Outside Set Diameter

Inside Set Diameter

inch

mm

inch

mm

BW

2.970/2.960

75.44/75.19

2.220/2.210

56.39/56.13

NW

3.620/3.610

91.95/91.70

2.845/2.835

72.26/72.00

HW

4.632/4.617

117.65/117.27

3.782/3.772

96.06/95.81

SAW TYPE TUNGSTEN BITS
Solid symmetrical tungsten tips set in a steel body giving a saw tooth cutting action. Suitable for use in clay and soft shale formations.

 

GRANULATED TUNGSTEN BITS
Sharp irregular shaped tungsten ships brazed to a steel body provide a cutting face with many cutting edges. Suitable for use in soft to medium formations.

 

TRIBLE-TUBE BITS
Up to 100% volumetric core recovery can be achieved in the most undisturbed condition with triple tube bits.

 



WIRELINE BITS
Wireline bits are used for deep ground exploration; various type wire line core bits are manufactured in our company.

 

CASING AND ROD SHOES SERIES
Casing shoes are used for drilling down or positioning casing tubes in drilled holes. The smooth interior and large size allow free passage of drill bits, core bits, reaming shells and core barrels. Impregnated casing shoes are used for very hard and fractured formations whilst Tungsten Carbide casing shoes for soft to medium hard formations. Our products include both impregnated and tungsten carbide casing rod shoes.
 

DIAMOND REAMING SHELLS SERIES
Reaming shells are designed to be placed behind the core bits to ensure the size of the hole to maintain and assist the core barrel stabilization. Our reaming shells are available for all types of core barrels, since the working parts of reaming shells, with a spiral and a parallel design, contains both mono-crystalline and polycrystalline diamonds.