Diamond Core Drill& Bits Segment is made of top quality diamond and Cobalt Powder, It is special shape for different drill stem. drilling and strong cast iron, Concrete, Construction work and Different hardness Slabs such as Marble Granite, Micro-Crystal, Stone, Quartz, Jade, etc. Developed with new and special formula to make high sharpness and Long working life for customers.  For fix up air-condition, Drilling hole in wall, ground, floor, drainage pipes etc.  It differ different types as below 

1. For Wet drilling, 450mm length, UNC1-1/4" thread, OD18-OD400 Laser welded technology, Over 400mm, silver welding technology.

2. For Dry Drilling, OD68xM16x90mm or 110mm length. OD828xM16x90mm or 110mm length. Laser welded. 

3. For Dry Drilling, OD32 to OD182, M16, M14, 5/8"-11 Thread. 150mm length. Laser welded.