Description of DTH button bit:
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Same as top hammer button bits, DTH button bits have different face design, different button shapes, different flushing holes design, different hole openers designs. At ZM, whatever flat face, convex face, concave face, drop center face, spherical buttons, ballistic buttons, spike buttons, conical buttons, any design is available according to customers’ request. The diameter is from < Xml: namespace prefix = st1 />
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