Conventional PDC Drill Bit

Covers the size range from 4" to 30" (101.6mm to 762mm) both matrix body and steel body.Advanced cutting structure ( cutter layouts), high performance PDC cutters and ...

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Directional PDC Drill Bit

Have been engineered for maximum performance in directional drilling in order to meet increasingly complex well paths, tighter targets, greater attention to wellbore quality and...

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Bi-center Bit

Be designed to enlarge the wellbore, by drilling 15-25 percent larger than the pass through wellbore in all type of PDC drillable formation. The bi-center bits are used in increase lateral iameter, to...

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Specialty Bit

Natural diamond, TSP and core bits are available for specific drilling applications. All designs are available in matrix with size availability ranging from 4" to 30" (101.6mm to 762mm).

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HISTORY

The North China Petroleum Administration Bureau established Longtime Mechanical Spares Co., Ltd. (LMSC) as subsidiary of CNPC in the year 1992 to provide engineering and manufacturing of PDC and Diamond Drill Bits for the Oil and Gas Industry.  During a restructuring exercise in the year 2000, the Chinese government reformed LMSC as Kangda Supplies Co., Ltd (KSC) effectively transferring technology...