DHD360 বিট 178mm কনকভ মুখ 2 গর্ত

Video Description:
Discover the DHD360 Bit 178mm Concave face 2 holes, a high-performance DTH bit designed for 6inch DTH hammers like SD6, QL60, M60, and COP64. Perfect for high air pressure rock drilling, this bit ensures durability and efficiency in demanding conditions.
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