الوصف

Description:
  Surface set diamond core bits can be used with any type of core barrels, To avoid excessive matrix wear at the leading edge of each segment.Tingsten carbide inserts are fitted on each side of the waterway.This kind of bits cannot be used in broken or loose formation.
 
  Surface set bits provide higher rates of penetration than impregnated bits in soft formations due to the greater degree of exposure of the individual diamond stones.
 
  A range of surface set core bits are manufactured to the highest quality standards to give long service life and maximum penetration in soft to hard formations. The range includes a variety of diamond grades, stone sizes and face profiles enabling a cost effective solution to be taken for most conditions.
 
Diamond stone size: Stones Per Carat (spc)

*0/*5 spc: Soft to Medium Formation

*0/*5 spc: Medium to Hard Formation

*0/*0 spc: Medium Hard to Hard Formation

*0/*0 spc: Hard Formation

*0/*0 spc: Hard to Very Hard Formation
 
 
 
FACE PROFILES

Semi Round : Standard profile. Very strong in hard broken formation.

Stepped : High penetration and stability but fragile in hard fractured formation.

Conical : Good penetration rate and stability. Stronger than stepped profile.

Pilot : Good core recovery in soft, friable formation especially when used with face discharge. Good stablisation but fragile nose.

Biconical : Only used on thick kerf core bits in soft unfractured formation.
 
 
 
 
Size Available:
Q series:AQ，BQ，NQ，HQ，PQ，BQ3，NQ3/NQTT,NQ2,HQ3/HQTT,PQ3/PQTT  
T2 Series: T2 *6,T2 *6,T2 *6,T2 *6,T2 *6,T2 **1
T6 Series: T6 *6,T6 *6,T6 **1,T6 **6,T6 **1,T6 **6, T6S **1
T Series:  T*6,T*6,T*6,T*6,T*6,T*6
Z Series:  Z*6,Z*6,Z*6,Z*6,Z*6,Z**1,Z**6,Z**1,Z**6
B Series:  B*6,B*6,B*6,B*6,B*6,B*6,B**1,B**6,B**1,B**6
WF Series: HWF,PWF,SWF,UWF,ZWF
WT Series: RWT,EWT,AWT,BWT,NWT,HWT
WM Series: EWM,AWM,BWM,NWM
WG Series: EWG,AWG,BWG,NWG,HWG
Others:   NMLC,HMLC,LTK*8,LTK*0,BGM,NGM,ADBG,TBW,TNW,
ATW,BTW,NTW,NXD3,AX,NX,NXC,AXT,T6H,4 9/*6,NWD4,**2F,SK6L**6,
TT*6,TB*6,TS**6,CHD*0