We manufacture rock drill bits and machines used in mining and construction. We manufacture rock drill bits and machines used in mining and constructionButton bits:Head 45 / 48 ... / 42 / 43 with socket 22,24,25 and the taper 12°,6°,7°Cross bits:Head 32 / 34 / 36 / 38 / 40 / 42 ... / 44 / 46 with socket 22,24,25 and the taper 12°,6°,7°Retrac bits:Head 51 / 64 / 76 / 89 / 102 with ...