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High Air Pressure Down The Hole Bit

Mission Shank High Air Pressure Hammer Bit

KINGDRILLING hammer bits are matched with down the hole hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill hammer bits are designed with a spline drive for rotating the bit in the ground.
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Mission shank high air pressure hammer bit

Product details

KINGDRILLING hammer bits are used with Down-the-hole hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill hammer bits are designed with a spline drive for rotating the bit in the ground. Drill bits are available in different sizes and different styles so they can drill a wide range of hole sizes.

Rock drill bits Shank type:M3,M4,M5,M6,M8,M1,M12

DTH hammer bits hole diameter: 3'', 4'', 5'', 6'', 8''(85mm-350mm).


Product features: 
DTH Drill Bits are produced from premium quality nickel-alloy steel for increased durability and wear characteristics. Specific heat treatment standards and special “stress relief” processes ensure consistent performance. 


3 Inch Hight Air Pressure DTH bits

Model

Bit Dia.(mm)

NO. X    Button Dia.

NO.Air    Holes(PCS)

Weight(KG)

Gauge

Front

MDHM3-85

85

6*Φ13

4*Φ12

2

4.5

MDHM3-90

90

6*Φ14

4*Φ12

2

4.7

MDHM3-95

95

6*Φ14

4*Φ13

2

4.9

MDHM3-100

100

6*Φ14

5*Φ12

2

5.0

MDHM3-105

105

6*Φ14

5*Φ13

2

5.5

4 inch high air  pressure DTH bits

MDHM4-105

105

6*Φ14

5*Φ13

2

6.0

MDHM4-110

110

7*Φ14

6*Φ13

2

6.2

MDHM4-115

115

7*Φ14

6*Φ13

2

6.6

MDHM4-120

120

8*Φ14

7*Φ13

2

7.0

MDHM4-127

127

8*Φ14

7*Φ13

2

7.4

5 inch high air pressure DTH bits

MDHM5-135

135

7*Φ18

6*Φ14

2

12.5

MDHM5-140

140

7*Φ18

7*Φ14

2

13.5

MDHM5-146

146

7*Φ18

7*Φ14

2

14.0

MDHM5-152

152

8*Φ18

8*Φ14

2

14.4

MDHM5-165

165

8*Φ18

8*Φ16

2

15.0

6 inch high air pressure DTH bits

MDHM6-152

152

8*Φ18

7*Φ16

2

22.0

MDHM6-165

165

8*Φ18

8*Φ16

2

23.0

MDHM6-171

171

8*Φ18

8*Φ16

2

24.0

MDHM6-190

190

9*Φ18

9*Φ16

3

25.0

MDHM6-203

203

9*Φ18

11*Φ16

3

28.0

8 inch high air pressure DTH bits

MDHM8-305

305

12*Φ18

29*Φ16

4

95.0

MDHM8-203

203

10*Φ18

10*Φ16

2

35.0

MDHM8-216

216

10*Φ18

12*Φ16

2

40.0

MDHM8-241

241

12*Φ18

18*Φ16

2

54.0

MDHM8-254

254

12*Φ18

21*Φ16

3

57.0

MDHM8-305

305

12*Φ18

29*Φ16

4

77.0

10 inch high air pressure DTH bits

MDHM10-254

254

12*Φ18

20*Φ16

3

90.0

MDHM10-305

305

12*Φ18

36*Φ16

4

102.0

MDHM10-311

311

12*Φ18

36*Φ16

4

104.0

MDHM10-318

318

12*Φ18

38*Φ16

4

106.0

MDHM10-330

330

14*Φ18

42*Φ16

4

112.0

12 inch high air pressure DTH bits

MDHM12-305

305

12*Φ18

36*Φ16

4

152.0

MDHM12-311

311

12*Φ18

36*Φ16

4

158.0

MDHM12-330

330

16*Φ18

42*Φ16

4

165.0

MDHM12-356

356

16*Φ19

48*Φ16

4

178.0

MDHM12-381

381

16*Φ19

48*Φ18

4

195.0

MDHM125-305

305

12*Φ18

36*Φ16

4

170.0

MDHM125-311

311

12*Φ18

36*Φ16

4

173.0

MDHM125-330

330

16*Φ18

42*Φ16

4

182.0

MDHM125-356

356

16*Φ19

48*Φ16

4

191.0

MDHM125-381

381

16*Φ19

48*Φ18

4

200.0


How to order:

Shank Type + Head Diameter + Face Design + Button Shape


FAQ:

1. How to order the products?

A: Please send the inquiry with detail item description or with Model number.


2. Can I expect a quality products?

A: Yes. mature production technology ensuring the quality satisfy international request.


3. How to control quality?

A: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.


4. Competitive price:

A: KINGDRILLING factory can supply you the lowest price due to direct sale to customers without distributor.


5. What is the Application?

Mining, Quarrying, Tunneling, Construction, Geological Exploration, Water-well Drilling, Oilfield & Gas Industries.


6. Product feature

Kingdrilling DTH tools are forged by advanced electron-hydraulic forging hammer, and harness process is managed by multipurpose furnace heat treatment.


7. How to choose the suitable head face of the DTH drill bit?

a. Concave:

Suitable for all kinds of formation, especially for deep well drilling, perpendicularity of the hole is wonderful.

b. Convex: 

Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.

c. Flat:

Suitable for special hard formation stratum, especially for fracture, crack spacing and complex formation drilling effect is very good, has the good perpendicularity of the borehole.

 MING hammer rock drill bit.jpg

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