DHD340-121 Drill Hammer Bit , Hard Carbide Steel Top Hammer Drill Bits

Gold flat spherical DTH drilling tools of DHD340-121 drill bits.

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

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 Sele

1. Semi-Ballistic Buttons

2. Ballistic Button

3. Spherical Button

4. Two-step Button

rock drill bits

rock drilling tools

DHD340-121 Drill Hammer Bit , Hard Carbide Steel Top Hammer Drill Bits Images