Semi-finished deep hole used drill 

Using:

low air pressure DTH bits/dth hammer drill bit  Suitable for cutting, drilling various hard Non-ferrous materials, such 

as marble, granite, glass, ceramic, hard concrete and brick 

Grades of low air pressure DTH bits/dth hammer drill bit as following :

YG8C    YG11C   YK20   YK15.6   YK25   YK45  

Many kind of semi-finshed carbide drill show: 

The inner packing of low air pressure DTH bits/dth hammer drill bit

The outter packing of low air pressure DTH bits/dth hammer drill bit

Zhuzhou Jinxin Cemented Carbide Co., Ltd is a professional manufacturer of carbide turning/milling inserts, stone cutting inserts, sand making machine tungsten carbide strips, wear parts and carbide mining tools. We can also do items as per customers' drawing and requirements. 

 More items will be found in our shop, looking forward to your visiting & chatting on line ( MSN:chinacarbide at live.cn )^^

Also you are welcomed to visit our factory if you like.

Enjoy your purchasing time,any more questions please feel free to contact me!!!

OEM&ODM are welcome!!!