50mm to 500mm super quality mineral core drilling

diamond drill,diamond core drills,diamond core bits: 1,over 20years experience 2,many kinds of size 3,super quality

ISO9001:2000,SGS certification.(over 20years experience. one of the leader in China.)

  diamond drill,diamond core drills,diamond core bits Electroplated diamond core drill bit for mine, coal mine drill bits. all kinds of drill bit. the size is following:

1, Double tube drill:

Φ28,Φ36,Φ46,Φ59,Φ60,Φ66,Φ75,Φ76,Φ91,Φ94,Φ110

2,single tube drill:

Φ36,Φ46,Φ59,Φ75,Φ91,Φ94,Φ110,Φ130,Φ170,Φ200

3,rope drill

Φ46,Φ47,Φ59,Φ60,Φ75

4, different or unnormal drill

it depend on your requirements.

we can make our diamond drill to fit all kinds of geological stone.

1, soft layer: 

Alluvial soil layer;

Mud ash zone;

sandstone;

shale;

2,middle-hard stone:

Fine single limestone;

Reinforced concrete;

dolostone;

Hard sandstone;

other middle-hard stones

3, hard-stone

basalt;

diorite;

diorite granite;

and others granite

4, super-hard stone:

super-hard granite;

high-silicon granite;

Quartz spot granite;

firestone

           we are over 20years experience on make all kinds of diamond drills and diamond segments. cutting bits,core drills.

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50mm to 500mm super quality mineral core drilling