- Grand Product Line

Stock list

Our UAE stock location is established to ensure the shortest delivery time to the customers working in the region. With maximum three working days our bits can be delivered to any location all over the Middle East & Africa countries.

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Roller Cone Bits: Grand Product Line

Stell teeth bit 490.0 (19 19/64) GRD213
Grand Product Line (V):

Large diameter three cone bits with open bearings, designed for drilling upper well sections (surface hole drilling) with up to 600 RPM.

Without sealing elements in the bearing, it is possible to maximize the journal and the rollers dimensions. This enables to achieve full circulation in the bearing which is highly important as it helps reducing the torque, providing quick cooling action and increasing bearing life.

Bearing life is greatly extended due to hardfacing of radial and thrust journal bearing surfaces with wear-resistant hard alloy.

The cutting structure is designed to guarantee maximum wear resistance and increased bit life. Depending on the formations’ hardness and abrasiveness, drill bits can have a cutting structure of steel teeth or TCI. To increase durability, the steel teeth are hardfaced with wear-resistant tungsten carbide based material. Where it is required, gauge is protected with tungsten carbide compacts. Hard grain alloy is applied along the shirttail and leg leading edge.

Some Grand Steel Tooth Bits

Old Designation NewDesignation Size: mm / in IADC PIN Size, "
V-K11T GRD111 660.4 / 26 111 7 5/8 API REG
V-K12T GRD121 660.4 / 26 121 7 5/8 API REG
V-K13T GRD131 660.4 / 26 131 7 5/8 API REG
V-KL11 GRD111 555 / 21_17/20 111 7 5/8 API REG
V-KL11 GRD111 508 / 20 111 7 5/8 API REG
V-KL11 GRD111 490 / 19_19/64 111 7 5/8 API REG
V-KL11 GRD213 490 / 19_19/64 213 7 5/8 API REG
V-KL11 GRD111 444.5 / 17_1/2 111 7 5/8 API REG
V-KLS31T GRD311 444.5 / 17_1/2 311 7 5/8 API REG
V-K11T GRD111 393.7 / 15_1/2 111 7 5/8 API REG
V-K21 GRD211 393.7 / 15_1/2 211 7 5/8 API REG