The Tianhe DTH drill bits are made from hard alloy and special steel, which have high strength, high wear resistance and long life features. They can be widely applied in open-pit or underground mining，hydraulic engineering，oil and natural gas engineering ,bridge engineering，construction engineering，geotechnical engineering and some other fields.We can design and produce different drill bits according to custometrs' different requirements. Our company has passed ISO: 9001: 2000 qualities administer system certification. Our products have been sold to more than fifty countries。

(1) Size: 76mm-800mm
(2) DTH Hammer: 3”-16”
(3) Package: in wooden case
(4) Productivity: 3000pcs/month

Main specifications:
3.5INCH:DHD3.5,TH3.5,COP32,COP34,MACH303,MISSION3.5,BR33 4INCH:DHD340,COP44,COP42,MACH44,MISSION40,SD4,QL4,XL4 5INCH:DHD350,COP54,MACH50,MISSION50,SD5,QL50 6INCH:TH139,DHD360,COP64,COP62,MISSION60,SD6,QL60,XL6,JW150 8INCH:DHD380,TH180,TS180,SD8,QL80 10INCH:TH220,SD10,NUMA100 12INCH:DHD112,TS275,SD12,NUMA120