Gold concave spherical DTH drilling tools of DHD112 drill bit
1. applicable hard,very hard and medium soft rock formations.
2. Reliable quality, long service life, rare abnormal breakage
during service life.
3. Good flushing effect to ensure high drilling rate
4. Strict quality warranty and compensation rules
Italy, France, Russia, Greece,Canada,Korea, Chile, Brazil, Nigeria,
Mongolia and etc.
Bit Dia.+ Shank + Face shape + Carbide button shape
Examples For Ordinary Bits
Flat, spherical(other designs of faces and inserts are available)
Trading & supplier of china products High Air Pressure Dth Bits
Bit Face Shape Selection:
1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock
formations. Low to medium air pressures. Maximum hole deviation
2. Concave Face
The all-around application bit face specifically for medium hard
and homogeneous rock formations.
Good hole deviation control and good flushing capacity.
3. Convex Face
For high penetration rates in soft to medium-hard with low to
medium air pressures. It is the most resistance to steel wash, and
may reduce theload and wear on the gauge buttons, but poor hole
4. Flat Face Bit
This kind of face shape is suitable for hard to very hard and
abrasive rock formations in applications with high air pressures.
Good penetration rates an resistance to steel wash.
Carbide Button Shape Selection:
1. Semi-Ballistic Buttons
2. Ballistic Button
3. Spherical Button
4. Two-step Button
We have advanced production equipment & talented researchers & technicians & rich experiences
in R & D and production.
We using the best quality raw materials.
We adopting advanced production technology & strict testing
We passed ISO9001 quality management system certification.
We accept OEM manufacturing and produce on your design.
first class special alloy steel with high strength, heat resistance
The best tungsten carbides from China are commonly applied.
Tungsten carbide from European is also available.
2.12 years experience
3.Can match to the original bit shank