6-inch DTH Pneumatic Rock Drill Bit with QL60 Shank - 146mm OD, 10-25 Bar Working Pressure for Construction Drilling
KINGDRILLING DTH hammers are manufactured in sizes ranging from 2" to 33", with compatible down-the-hole hammer bits available from 2" to 48". These tools feature multiple shank types, various face configurations, and diverse tungsten carbide button styles to accommodate different drilling conditions and rock formations.
| Model | OD (mm) | Hole Range (mm) | Length (mm) | Connection Thread | Working Pressure (Mpa) | Air Consumption | Weight (Kg) |
|---|---|---|---|---|---|---|---|
| MH40Q | 99 | 110-135 | 1070 | API2-3/8"REG | 1.2-2.0 | 1.0Mpa-5m³/min 1.8Mpa-9m³/min 2.4Mpa-14m³/min |
40 |
| MH50Q | 125 | 135-155 | 1090 | API2-3/8"REG/API2-7/8"IF/API3-1/2"REG | 1.3-2.3 | 1.0Mpa-7m³/min 1.8Mpa-14m³/min 2.4Mpa-19m³/min |
67 |
| MH60Q | 146 | 155-203 | 1183 | API3-1/2"REG | 1.5-2.5 | 1.0Mpa-9m³/min 1.8Mpa-18m³/min 2.4Mpa-26m³/min |
92 |
| MH80Q | 180 | 195-254 | 1330 | API4-1/2"REG | 1.5-3.0 | 1.0Mpa-12m³/min 1.8Mpa-22m³/min 2.4Mpa-28m³/min |
171 |
When placing an order, please specify: Shank Type + Top Sub Thread + (With/Without Valve, if this parameter is optional)
Down-the-hole drilling (DTH) involves a drilling hammer positioned at the bottom of a drill string. This system utilizes three essential elements for effective hole drilling: bit loading (weight), rotation, and compressed air. These components work together to efficiently crush rock formations.
Located at the tip of the drillstring, below the drill collar and drill pipe, the drill bit is a rotating apparatus typically consisting of two or three cones constructed from extremely hard materials such as steel, tungsten carbide, and/or synthetic or natural diamonds. These components feature sharp teeth designed to cut through rock effectively.
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