drill bits for hammer drill rock drill bits atlas copco DHD350R COP54 SD5 QL50 M50
Bit Face Shape Selection:
Center Drop Bit:
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressure.
Maximum hole deviation control.
Concave Face
The all-around application bit face specifically for medium hard and homogenerous rock formations.
Good hole deviation control and good flushing capacity.
Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressure. It is the most resistance to steel wash, any may reduce the load and wear on gauge buttons, but poor hole deviation control.
Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressure and good resistance to steel wash step gauge bit.
Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formation is applications with high air pressure. Good penetration rates and resistance to steel wash.
| 5 Inch High Air Pressure DTH Bit |
| DTH Button Bit | Diameter | Buttons and Size (mm) | Flushing hole | Weight |
| mm | inch | Front | Gauge | kg |
| DHD350R/COP54 
| 133 | 5 1/4 | 7x14 | 7x16 | 2 | 15.0 |
| 140 | 5 1/2 | 7x14 | 7x18 | 2 | 16.0 |
| 146 | 5 3/4 | 7x14 | 8x18 | 2 | 17.0 |
| 152 | 6 | 8x14 | 8x18 | 2 | 17.5 |
| 165 | 6 1/2 | 8x16 | 8x18 | 2 | 18.5 |
| SD5 | 133 | 5 1/4 | 7x14 | 7x16 | 2 | 15.5 |
| 140 | 5 1/2 | 7x14 | 7x18 | 2 | 16.0 |
| 146 | 5 3/4 | 7x14 | 8x18 | 2 | 16.5 |
| 152 | 6 | 8x14 | 8x18 | 2 | 17.0 |
| 165 | 6 1/2 | 8x16 | 8x18 | 2 | 18.0 |
| QL50 
| 133 | 5 1/4 | 7x14 | 7x18 | 2 | 15.5 |
| 140 | 5 1/2 | 7x14 | 7x18 | 2 | 16.0 |
| 146 | 5 3/4 | 7x14 | 8x18 | 2 | 16.5 |
| 152 | 6 | 8x14 | 8x18 | 2 | 17.0 |
| 165 | 6 1/2 | 8x16 | 8x18 | 2 | 18.0 |
| M50 | 135 | 5 1/4 | 7x14 | 7x18 | 2 | 12.5 |
| 140 | 5 1/2 | 7x14 | 7x18 | 2 | 13.5 |
| 146 | 5 3/4 | 7x14 | 8x18 | 2 | 14.0 |
| 152 | 6 | 8x14 | 8x18 | 2 | 14.4 |
| 165 | 6 1/2 | 8x16 | 8x18 | 2 | 15.0 |
| We can design and manufacture according to customer's requirements of the bit diameter, the carbide buttons(spherical, ballistic) and the face shape(flat, convex, concave) and the no. of flushing holes. |
DTH hammer bits/DTH биты молоток/DTH martilyo bits/DTH บิตค้อน/DTH martillo de bits
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Drill Bits For Hammer Drill Rock Drill Bits Atlas Copco DHD350R COP54 SD5 QL50 M50 Images
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