8-10 inch High Air Pressure DTH Bit

Overview:

8 inch high air pressure DTH bits
10 inch high air pressure DTH bits

Product Applications Product Features Technical Parameters Related Products

Applications

Our DTH drill bits range covers the most diverse applications in mining, natural resources exploration, water wells, quarries and civil works.

Features of High Air Pressure DTH Drill Bits

1. Five basic dth drill bit designs: Flat front, Convex, Speed, Concave. All shapes for all types of rock of hard, soft or abrasive.
2. Deliver maximum energy to dth 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.
3. Smooth performance and long service life of DTH drill bits due to high quality alloy steel materials and advanced processing technology adapted.
4. Low problem rate and easy to maintenance due to simple , reliable and easy assemble and disassemble inner structure of DTH drill bits.
5. Easy to depart the dth bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.

8 inch high air pressure DTH bits

Drill Bit

The Drill Head Diameter (mm)

Spline Key Number

Gauge Buttons

Front Buttons

Weight

Part No

203

2

10XΦ18

10XΦ16

40.0

HD85-203

216

2

10XΦ18

12XΦ16

49.0

HD85-216

241

2

12XΦ18

18XΦ16

64.0

HD85-241

254

3

12XΦ18

21XΦ16

71.0

HD85-254

305

4

12XΦ18

29XΦ16

95.0

HD85-305

203

2

10XΦ18

10XΦ16

37.0

SD8-203

216

2

10XΦ18

12XΦ16

48.0

SD8-216

241

2

12XΦ18

18XΦ16

63.0

SD8-241

254

3

12XΦ18

21XΦ16

70.0

SD8-254

305

4

12XΦ18

29XΦ16

94.0

SD8-305

203

2

10XΦ18

10XΦ16

35.0

QL80-203

216

2

10XΦ18

12XΦ16

49.0

QL80-216

241

2

12XΦ18

18XΦ16

64.0

QL80-241

254

3

12XΦ18

21XΦ16

71.0

QL80-254

305

4

12XΦ18

29XΦ16

95.0

QL80-305

203

2

10XΦ18

10XΦ16

35.0

HM8-203

216

2

10XΦ18

12XΦ16

40.0

HM8-216

241

2

12XΦ18

18XΦ16

54.0

HM8-241

254

3

12XΦ18

21XΦ16

57.0

HM8-254

305

4

12XΦ18

29XΦ16

77.0

HM8-305

 

10 inch high air pressure DTH bits

Drill Bit

The Drill Head Diameter (mm)

Spline Key Number

Gauge Buttons

Front Buttons

Weight

Part No

254

3

12XΦ18

20XΦ16

108.0

SD10-254

305

4

12XΦ18

36XΦ16

125.0

SD10-305

311

4

12XΦ18

36XΦ16

130.0

SD10-311

318

4

12XΦ18

38XΦ16

142.0

SD10-318

330

4

16XΦ18

42XΦ16

155.0

SD10-330

254

3

12XΦ18

20XΦ16

90.0

Numa100-254

305

4

12XΦ18

36XΦ16

102.0

Numa100-305

311

4

12XΦ18

36XΦ16

104.0

Numa100-311

318

4

12XΦ18

38XΦ16

106.0

Numa100-318

330

4

14XΦ18

42XΦ16

112.0

Numa100-330

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