1、KX42-250
Rock Formation： Clays，Marl，soft sandstone，conglomerate，salt rock，soft limestone，etc。 Broken rock way： Crush， dig hitting ， shave planing join whorl： 6 5/8REG drilling weight of recommendation： 3430～7850kn/cm of bit diameter rotary speed of commendation：90～120r/min
Rock Formation： Clays，Marl，soft sandstone，conglomerate，salt rock，soft limestone，etc。 Broken rock way： Crush， dig hitting ， shave planing join whorl： 6 5/8REG drilling weight of recommendation： 3430～7850kn/cm of bit diameter rotary speed of commendation：90～120r/min
2、KX54-250
Rock Formation：Shale，sandstone，limestone，cloud rock，a thousand shales， brown iron ore，etc。 join whorl：6 5/8REG drilling weight of recommendation：3920～8340kn/cm of bit diameter rotary speed of commendation：80～120r/min
Rock Formation：Shale，sandstone，limestone，cloud rock，a thousand shales， brown iron ore，etc。 join whorl：6 5/8REG drilling weight of recommendation：3920～8340kn/cm of bit diameter rotary speed of commendation：80～120r/min
3、KX72-250
Rock Formation：Limestone，Cloud rock， spend hillock flash head porphyry， a thousand rock，etc。 Broken rock way：Crush and dig hitting。 join whorl：6 5/8REG drilling weight of recommendation：5880～11770kn/cm of bit diameter rotary speed of commendation：50～80r/min
Rock Formation：Limestone，Cloud rock， spend hillock flash head porphyry， a thousand rock，etc。 Broken rock way：Crush and dig hitting。 join whorl：6 5/8REG drilling weight of recommendation：5880～11770kn/cm of bit diameter rotary speed of commendation：50～80r/min
4、KX74-200
Rock Formation：Granite、Silicon and card rock、Silicate the gray rock、Iron ore of phosphorus、Haematite ,etc。Broken rock way：Crush and dig hitting。join whorl：4 1/2REG drilling weight of recommendation：5880～11770kn/cm of bit diameter rotary speed of commendation：50～80r/min
Rock Formation：Granite、Silicon and card rock、Silicate the gray rock、Iron ore of phosphorus、Haematite ,etc。Broken rock way：Crush and dig hitting。join whorl：4 1/2REG drilling weight of recommendation：5880～11770kn/cm of bit diameter rotary speed of commendation：50～80r/min
5、KX74-250
Rock Formation：Granite，silicon and card rock， silicating gray rock，iron ore of phosphorus， haematite，etc。 Broken rock way：Crush and dig hitting。 join whorl：6 5/8REG drilling weight of recommendation：5880～11770kn/cm of bit diameter rotary speed of commendation：50～80r/min
Rock Formation：Granite，silicon and card rock， silicating gray rock，iron ore of phosphorus， haematite，etc。 Broken rock way：Crush and dig hitting。 join whorl：6 5/8REG drilling weight of recommendation：5880～11770kn/cm of bit diameter rotary speed of commendation：50～80r/min
6、KX84-250
Rock Formation：Hard sandstone，hard granite， basalt， pre-pressing phosphorus iron ore，tunnel stone of iron，etc。 Broken rock way：Crush and dig hitting join whorl：6 5/8REG drilling weight of recommendation：6870～14710kn/cm of bit diameter rotary speed of commendation：50～80r/min
Rock Formation：Hard sandstone，hard granite， basalt， pre-pressing phosphorus iron ore，tunnel stone of iron，etc。 Broken rock way：Crush and dig hitting join whorl：6 5/8REG drilling weight of recommendation：6870～14710kn/cm of bit diameter rotary speed of commendation：50～80r/min
