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| Categories | kingdream drill bit |
|---|---|
| Brand Name: | kingdream |
| Model Number: | FGJ/GJTSeries |
| Certification: | API7-1 |
| Place of Origin: | china |
| MOQ: | 1 |
| Packaging Details: | according to customer requirement |
| material: | carbon steel |
| OD: | 8 1/2-17 1/2 inch, |
| IADC: | 115-445 |
| certificate: | API7-1 |
| useage: | well drilling |
FGJ/GJTSeries
Metal Sealed Roller Bearing Tricone Bit
The Range of FGJ/GJT series bit is 12 1/4-17 1/2 inch and its IADC
code from114 to 545.
FGJ/GJT bit adopts metal seal with roller bearing,which can drill
stably with middle to low WOB and middle to high RPM,it’s the ideal
choice part of well section.
Main Features:
The rolling body is arranged on the cone body of the cylindrical
groove, increase the shaft neck and rolling body size.
the limit pressure and prevent drilling fluid into the lubrication
system of the rubber oil storage bursa, provide good lubrication
for the bearing system.
The palm and dorsal tip welding hard material strengthened gauge,
large size drill with center jet.
in the row between the teeth and the back cone tooth insert a row
of protection cone and the borehole wall is repaired tooth row,
forming a unique series of bit GJT.

| Size | Bit Type | |
| inch | mm | |
| 8 1/2 | 215.9 | GJ115C.GJT115C.GJT125C.GJ135G.GJT415G.GJT435G.GJT445G |
| 9 1/2 | 241.3 | GJ115C.GJT115C.GJT125C.GJ135G.GJT415G.GJT435G.GJT445G |
| 12 1/4 | 311.2 | GJ115C.GJT115C.GJT125C.GJ135G.GJT415G.GJT435G.GJT445G |
| 16 | 406.4 | GJ115C.GJT115C.GJT125C.GJ135G.GJT415G.GJT435G.GJT445G |
| 17 1/2 | 444.5 | GJ115C.GJT115C.GJT125C.GJ135G.GJT415G.GJT435G.GJT445G |





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