Down the hole drilling is to drive the hammer which behind the drill bitpressed air via the drill pipe. The piston strikes the bit directly, while the hammer external cylinder gives straight and stable guidance of the drill bit. This makes the impact of energy is not lost in joints and allowing for much deeper percussion drilling.
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DHD3.5 DHD340 DHD350 DHD360 DHD380 DTH Bits for Hammer 1.10 years experience 2. Certificate: ISO9001: 2008 3. Material: Carbide Bit Face Shape Selection: 1. Drop Center Bit 2. Concave Face 3. Convex Face 4. Double Gauge Face 5. Flat Face Bit Carbide Button Shape Selection: 1. Domed/Round Button 2. Parabolic/Semi Ballistic Buttons 3. Ballistic
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Recommended DTH bits diameter 3.5/3 DTH hammer bits COP34, DHD3.5, MISSION30, BR3 shank 90mm~ 105mm 4 DTH hammer bits DHD340, QL40, MISSION40, SD4 shank 110mm~ 130mm 5 DTH hammer bits DHD350, QL50, MISSION50, SD5 shank 134mm~ 152mm 6 DTH hammer bits DHD360, QL60, MISSION60, SD6 shank 152mm~ 203mm 8 DTH hammer bits
DTH Bits DTH Down the hole drilling is a rotary percussive drilling method. Hammer which is used for generating strong impacts is attached to the bottom of the drill string and a drill bit is attached to the lower end of the DTH hammer. The movement of the piston in
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