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Xi'an Tydrillbits Co.,Ltd is one of the most famous China dth hammer bit manufacturers,Website:://.tydrillbits.com, welcome to wholesale cheap dth hammer bit from our factory.Hammer and DTH Bits are available in various flushing hole configuration. In general, the rule is that Semispherical type DTH Hammer Bits design are applied to very hard rock. Ballistic type to medium hard and Conical type to soft rocks.Drill bit Bit Dia（mm）No Air HolesGauge ButtonsFront ButtonsWeight（mm）Type HD65(DHD360R COP64)15228×￠168×￠1622.0HD65-15216528×￠168×￠1626.0HD65-16517528×￠168×￠1627.0HD65-19019039×￠169×￠1628.5HD65-20320339×￠169×￠1629.5HD65-152 SD615228×￠168×￠1626.0SD6-16516528×￠168×￠1627.0SD6-17817528×￠168×￠1629.0SD6-19019039×￠169×￠1632.0SD6-20320339×￠169×￠1634.0SD6-152 QL615228×￠168×￠1624.0QL6-16516528×￠168×￠1625.0QL6-16517528×￠168×￠1627.0QL6-17819039×￠169×￠1629.0QL6-19020339×￠169×￠1633.0QL6-203 M6015228×￠168×￠1622.0M60-15216528×￠168×￠1623.0M60-16517528×￠168×￠1624.0M60-17819039×￠169×￠1625.0M60-19020339×￠169×￠1628.0M60-203
DTH Hammer Bit