SGA 545 G 12 1/4"

• Application: Used for soft formation with low compressive strength and high drill-ability, such as shale, soft limestone, soft sandstone, gravel clay, soft dolomite, salt rock and coal seam, etc.,
• Compressive strength: 80-120 Mpa
• Lug protection (G feature): Hard-metal and wear resistant carbide were applied to shirttail and shirttail lip. The shirttail features a “ terraced design”, which increases escape area and the bailing velocity and decrease cuttings regrind and wear on the bit.
• Bearing structure (SGA): Bearing Type: RollerBall- RollerThrust Button/O ring seal

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