CIR110 Low Air Pressure Down The Hole Hamemer, View CIR ...
1.high and low air pressure down-the-hole drill bits 2.Low air pressure hole Dia.:65-220mm 3.High air pressure hole Dia.:85-305mm 4.Face type: drop center bit/concave face/convex face/double gauge face/flat face bit 5. Carbide button shape: domed/round button parabolic/semi-ballistic button ballistic button sharp button flat button 6.
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