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Drilling tools

 

Blade bits (drag bits)


Blade bits
Replaceable blade bits
Blade Hole Openers
Jet grouting drag bits
Lost in the hole drag bits

 

Blade bits

drag bitsAvailable in both "Step" and "Chevron" configurations. Manufactured with high quality alloy steel, the blades are reinforced with tungsten carbide inserts.
These bits perform best in softer, unconsolidated formations (limestone sandstone - marl).
Widely used in mining, construction, exploration and water well drilling applications.

 

Diameter (inch)

Diameter (mm.)

Pin type

1 7/8 - 2

47.6 - 51

A-ROD

2 1/4 - 2 1/2

57-63.5

A-ROD

2 7/8 - 3

73-76

N-ROD (4 thd./Inch)

3 1/4 - 3 1/2

82.5 - 89

N-ROD

3 3/4 - 3 7/8

95-98

2 3/8 A.R.

4 - 4 1/4

101-108

2 3/8 A.R.

4 1/2 - 4 3/4

114-120

2 3/8 A.R.

5 - 5 1/8

127-130

2 3/8 A.R.

5 1/2 - 5 7/8

140-149

2 3/8 A.R.

6 - 6 1/4

152-159

2 3/8 A.R.

6 1/2 - 6 3/4

165-171

2 3/8 o 3 1/2 A.R.

7 - 7 1/4

178-184

3 1/2 A.R.

7 1/2 - 7 7/8

190-200

3 1/2 A.R.

8 1/2 - 9 7/8

216-250

3 1/2 o 4 1/2 A.R.

11 - 12 1/4

280-311

4 1/2 o 6 5/8 A.R.

14 3/4 - 17 1/2

375-445

6 5/8 A.R.

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Replaceable drag bits

replacable drag bit Used in a variety of formations and drilling applications, the replaceable blade feature allows flexibility in blade selection and easy replacement. Available in sizes from 3-7/8" Chevron & Step through 5-5/8" Chevron and 6-1/4" Step. The total unit consists of a set of blades, head & bowl, and adaptor sub in a variety of pin sizes and options.


 

 

 

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Blade Hole Opener 12 " (311mm)

drag bit and drag bit hole opener

drag bit and opener

 

 

 

 

 

 

 

 

 

 

 

 

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Jet grouting drag bits

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These drag bits are meant for jobs of opening Jet Gruoting columns when cement is injected with pressures from 100-600 bars.
injectors can have several sizes as 45° for horizontal jet(tunnels)m or 90° for vertical or sloping jet.

 

 

 

 

 

 

 

 

 

 

 










 

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Lost in the hole drag bits

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Lost in the hole drag bits are meant for special jobs when the drag bit is welded or screwed in a tube of the same diameter and the drilling rig drills up to the necessary depth.
When the job ends the drag bit and the tubes remain in the hole.

 

 

 

 

 










 

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