Gold concave spherical DTH drilling tools of DHD112 drill bit 305,350,400mm

Features:

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

Markets:

Italy, France, Russia, Greece,Canada,Korea, Chile, Brazil, Nigeria, Mongolia and etc.

Order Guide

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 control.

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 deviation control.

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

Our Advantages:

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 procedure.
We passed ISO9001 quality management system certification.
We accept OEM manufacturing and produce on your design.

Steel:

first class special alloy steel with high strength, heat resistance and wearable

Carbide
The best tungsten carbides from China are commonly applied.
Tungsten carbide from European is also available.

1.Steel Carbide
2.12 years experience
3.Can match to the original bit shank
4.Atlas quality