With professional and productive factory, HAINAISEN is one of the leading China double tube diamond core bit manufacturers. 

Welcome to wholesale double tube diamond core bit from us, we always have cheap products to offer you.

Quick Details

Place of Origin: 

Brand Name :

Model Number: all type 

Type: Drill Bit 

Machine Type: Drilling Tool 

Certification: ISO9001: 

Material: diamond 

Processing Type: Forging 

Use: Well Drilling 

type: impregnated/surface-set diamond drill bi... 

rock grade: from F1 to F12 

standard: Boart longyear          http://www.pdcoiltool.com