1)DTH hammer sizes: 3", 3.5", 4", 5", 6", 8"12”/DTH hammer shank styles: DHD3.5, DHD340, DHD350, DHD360, DHD380, SD4, SD5, SD6, SD8, Mission40, Miss ...
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Button bits, connection tapered or threaded, diameter from 33mm to 127mm; feature: long service life,competitive price,high penetration
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