SOFT TO MEDIUM FORMATION DRILLIING 
Medium short parabolic profile with medium cutter density helps to obtain better ROP in soft to medium hard formations with lower com[ressive strength and small hard layers. 
DURASET GAUGE 
Gauge cutter promotes gauge wear resistance to provide long bit life. 
HYDRAULICS 
Cuttings removal and bit cooling for bits are optimized by matching the volume of rock removed by the cuter on each blade with the proportional fluid flow. 
UNIQUE BACKRACK DEDIGN 
The cutter s backrack has been unique design, reducing the bit torque and increasing aggressiveness. 
Specification: 
Size: 17-1/2 
Materials: steel body 
Size of cutter: 19mm 
Blade: 5 
If you have interests, do not hesitate to contact me,thanks. 
Mia 
drillbits13at zkdrilling dot com