Product Description
Down The Hole Button Bits for Mining and Water Well Drilling DTH Hammer Bit
Description:
DTH Drill Bits are produced from premium quality nickel-alloy steel for increased durability and
wear characteristics. Specific heat treatment standards and special "stress relief" processes ensure
consistent performance.
DTH hammer bits are designed for maximum performance and hole cleaning ability and high penetration rate.
Our bits are interchangeable with Atlas Copco's COP32 34 44 54 64 84, Ingersoll-Rand 's DHD3.5,DHD3.5HD,
DHD 340A , DHD350R, DHD 360, DHD380 QL40, QL50 , QL60, QL80.NUMA100, NUMA120, MISSION60,ects
A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.
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 the load and wear on the gauge buttons, but poor hole deviation control.
Semi-Ballistic/Parabolic Buttons
Excellent penetration rate, but only suited to medium hard and not so very abrasive rock formation.
| Specification of dth hammer button bits: |
Diameter: (mm) |
| 1-2 inch low pressure DTH bits |
64/70/76/80/82/90 |
| 3 inch high Air pressure DHT bits |
85 / 90 / 95 / 100 / 105 |
| 4 inch high Air pressure DHT bits |
105 / 110 / 115 / 120 / 127 |
| 5 inch high Air pressure DHT bits |
133 / 140 / 146 / 152 / 165 |
| 6 inch high Air pressure DHT bits |
152 / 165 / 178 / 190 / 203 |
| 8 inch high Air pressure DHT bits |
195 / 203 / 216 / 254 / 305 |
| 10, 12 inch high Air pressure DTH bits |
254/305/318/330/356/381 |
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