190mm 7.5 inch MT(milled tooth) water well drilling bit / three-cone bits

Rock bits ***6 (*6mm***0mm) models are available

PDC bits ***7(**9mm***5mm) models are available

IADC CODE

(MT) **6 **7 *****7 **6 **7 **6 **7 **6 **6 **6 **7

**6 **7 **6 **7 **5 **5 **5 **5 **5 **5 **5 **5

**5 **4 **4 **4 **4 **1 **1 **1 **6 **7



(TCI) **7 **7 **7 **7 **7 **7 **7 **7 **7 **7 **7 **2

**5 **5 **5 **5 **5 **5 **5 **6 **7 **6 **6 **7

**6 **6 **7 **7 **6 **6 **5

 (PDC) M**1,M**2,M**3,M**2,M**2,M**3,M**2,M**3,M**3,M**2,M**3



 

TRICONE BIT INSTRUCTIONS

Tricone bit transportation

    As the small volume of tricone bit and heavy weight,safety should be noticed during transportation.The package is carton or wooden case.Waterproof and damp proof should

be noticed during transportation.

Tricone bit storage

     There is rubber piece and lubricating grease in tricone bit,So it can

not be stored in the open air.and be damp proof. The temperature should be ***0 centigrade degrees. No welding,heating and other processing is permitted on bit.

Tricone bit validity

     The roller bit should be utilized within four years after resembling.

Type selection of tricone bit

     Appropriate bit should be choosen according to drilling formation lithology and reference

on the conjoint well.



NOTICE:when shrink hole and long section is needed.its avoiding to work