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Down the Hole (DTH) Hammer Bits
Down the Hole (DTH) Hammer Bits
Down the Hole (DTH) Hammer Bits
Down the Hole (DTH) Hammer Bits
Down the Hole (DTH) Hammer Bits
Down the Hole (DTH) Hammer Bits
Down the Hole (DTH) Hammer Bits
Down the Hole (DTH) Hammer Bits
Down the Hole (DTH) Hammer Bits
Down the Hole (DTH) Hammer Bits

Down the Hole (DTH) Hammer Bits

D Miningwell’s down-the-hole drill bits are made of alloy steel and advanced heat-treated high-quality alloy steel to ensure good drilling performance and long service life. Widely used by customers all over the world.

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The D Miningwell low air pressure DTH drill bits used for 65-220mm diameter hole drilling，good performance in drill Granite, Marble, Limestone, Basalt, ect.
It’s mainly used in Blast holes, Quarry , Anchoring, Infrastructure, Geothermal holes

Our DTH Bits has following advantages:
1. 95% quality similarity with world top class brands,such as atlas Copco etc.
2. Strong ability in drilling tools production.
3.Strick quality control.

CIR series DTH bits(Low pressure)

Technical Parameters
Model： Gauge buttons(mm) Front buttons(mm) Tail shank diameter(mm) Port holes Weight(KG)
CIR76-76 φ12*5 φ12*3 φ43 2 2.1
CIR90-90 φ14*6 φ13*2+φ12*2 φ53.5 2 3.7
CIR90-110 φ14*6 φ13*3+φ12*3 φ53.5 3 4.6
CIR90-130 φ14*7 φ13*3+φ12*4 φ53.5 3 6
CIR110-110 φ14*6 φ13*3+φ12*3 φ64 3 6
CIR110-130 φ14*7 φ13*3+φ12*4 φ64 3 7.4
CIR110-150 φ14*8 φ14*3+φ13*6 φ64 3 9.6
CIR110-170 φ15*9 φ14*6+φ13*10 φ64 3 12.3
CIR110-200 φ15*9 φ14*6+φ13*12 φ64 3 16.5
CIR150-150 φ16*9 φ14*6+φ14*4 φ89.5 3 14.8
CIR150-175 φ16*9 φ14*6+φ14*5 φ89.5 3 19
CIR170-175 φ16*9 φ14*6+φ14*5 φ102 3 21
CIR170-185 φ16*9 φ14*6+φ14*6 φ102 3 21.8

DHD series DTH bits(High pressure)

Technical Parameters
Model： Head diameter： Shank length： Spline： Port holes： Gauge buttons： Front buttons： Weight：
DHD25A-76 76 174 6 2 φ14mm*6 φ11mm*4 3.2kg
DHD35A-90 90 180 8 2 φ14mm*6 φ12mm*5 4.7kg
DHD35A-100 100 180 8 2 φ14mm*6 φ12mm*5 4.8kg
DHD340-108 108 209 8 2 φ16mm*7 φ14mm*6 7.85kg
DHD340-130 130 209 8 2 φ16mm*8 φ14mm*4+φ13mm*3 8.88kg
DHD350-140 140 260 8 2 φ18mm*7 φ15mm*4+φ14mm*3 15.8kg
DHD350-152 152 260 8 2 φ18mm*8 φ14mm*8 17kg
DHD350-178 178 260 8 2 φ18mm*8 φ16mm*6+φ14mm*5 20.4kg
DHD360-154 154 308.5 8 2 φ18mm*8 φ16mm*4+φ15mm*4 22.5kg
DHD360-178 178 308.5 8 2 φ18mm*8 φ16mm*6+φ15mm*5 26.1kg
DHD360-203 203 308.5 8 2 φ18mm*10 φ16mm*8+φ15mm*6 30.4kg
DHD380-203 203 350 10 2 φ18mm*10 φ18mm*4+φ16mm*10 48.5kg
DHD380-254 254 350 10 2 φ18mm*12 φ18mm*12+φ16mm*8 62.4kg

Inquiry


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