China wholesale Down The Hole Hammer Drill - 6″ DTH Hammer Bits DHD360 / COP64 / QL60 / SD6 / MISSION60 Shank – Spark

Specification

Three Kind Of Bit Face And Two Kind Of Button Shapes Are Available

Flat Face

Concave Face

Convex Face

Spherical Button

Ballistic Button

Flat Face
Application: Hard and abrasive rock formation.
Typical formation: Granite, hard limestone, basalt.

Concave Face
Application: Medium hard to hard formations. Less abrasive, fractured formations. Excellent control for hole deviation.
Typical formation: Granite, hard limestone, basalt.

Convex Face
Application: Soft to medium hard rock. Non abrasive formation. High penetration rate.
Typical formation: Limestone, hard limestone, shale.

DTH BIT Features

1. Excellent insetting technology ensures that the carbides will not drop out from the bit body.

2. Advanced heat treatment equipment and technology to ensure the stability of the bit body performance.

3. Special bit surface design, structure design and specific processing technology are adopted to ensure the service life of DTH bit for different rock formation.

We can also supply other size bits with different shanks. If you need more information, please contact our sales for details. 

3.5”: DHD3.5, IR3.5, BR33

4”: DHD340, COP44, QLX40, TD40, SD4, MISSION40

5”: DHD350, COP54, QL50, SD5, MISSION50

6’: DHD360, COP64, QL60, SD6, MISSION60

8”: DHD380, QL80, SD8, MISSION80

10”: SD10, NUMA100

Large Diameter DTH BITS

The large diameter bits are mainly used in three applications: embedded prefabrication pile, long spiral pile and large diameter end bearing pile.

We can supply large diameter bits with different size and shanks:

12”: DHD112, SD12, NUMA120, NUMA125

14”: NUMA125

18’: NUMA180

24”: NUMA240

Large Diameter DTH Bits Features

Wide applied for complex rock formation like caves, pebbles, fissures etc;

Drilling through hard rocks with high penetration rate;

Low air consumption.