4 Inch DTH Bits

4 inch dth hammer drill bit Our Tungsten Carbide DTH Drill Bits are made of high quality alloy steel with advanced heat threatment to assure the good drilling performance and long service life. They are widely used by our customers all over the world.The DTH bits have various sizes and styles...

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4 inch dth hammer drill bit

Our Tungsten Carbide  DTH  Drill Bits are made of high quality alloy steel with advanced heat threatment to assure the good drilling performance and long service life. They are widely used by our customers all over the world.The DTH bits have various sizes and styles ,can match  many kinds of hammers such as Ingersoll-Rand, Mission, Atlas Copco etc. For the most effective operation in various drilling conditions, we offer flat face, concave, drop centre head designs.

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The characteristics of  Tungsten Carbide  DTH  Drill Bits:

1.Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to inner structure of HD series DTH hammer designed according to newest rock drilling theory.

2.Smooth performance and long service life of DTH bits due to high quality alloy steel materials and advanced processing technology adapted.

3.Low problem rate and easy to maintenance due to simple , reliable and easy assemble and disassemble inner structure of DTH bits.

4.Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.

5.Interchangeable with DTH bit and dill pipe manufactured by Atlas copco and Ingersoll-rand.

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Various size of DTH drill bits:

Type

Model

Length
(mm)

Weight (kg)

External   Dia.(mm)

Hole Range  (mm)

3.5 inch

DHD3.5

930

25

Φ82

Φ90-110

4 inch

DHD340

1030

39

Φ99

Φ110-135

SD4

1084

40.5

Φ99

QL4

1097

41

Φ99

Mission40

1005

40

Φ99

5 inch

DHD350

1214

76.5

Φ125

Φ135-155

SD5

1175

72.5

Φ125

QL5

1147

73

Φ125

Mission50

1110

68.5

Φ125

6 inch

DHD360

1248

100

Φ142

Φ155-190

SD6

1261

100

Φ142

QL6

1212

95

Φ146

Mission60

1161

90

Φ146

8 inch

D85

1492

188

Φ180

Φ195-254

SD8

1463

192

Φ180

QL8

1465

182

Φ180

Mission80

1338

176

Φ180

10 inch

SD10

1502

290

Φ226

Φ254-311

NUMA100

1510

288

Φ226

12 inch

DHD1120

All can be designed according to your requests!

Numa120

Numa125


What are your strengths?

Area of our factory: over 50,000SQM;

Numbers of our employees: over 700;

Numbers of our equipment &facilities: Over 1000 sets

Numbers of DTH Hammer production yearly: over 20,000 sets

Numbers of Drill bits production yearly: over 250,000 pcs

Annual turnover in USD: 60 Million

Market share(China): 40%-50%

Export market volume: 30 Million USD

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