14 3/4″ SGA535GXT


Size: 14 3/4″ (374.65 mm)
IADC: 535
Bearing and Seal: Journal Bearing / O-Ring rubber seal
No. of Rows: 5-5-4
Inner Row: Wedge / 144 pcs
Gauge Row: Wedge / 60 pcs
Trimming Row: Wedge / 23 pcs
Bevel Row: Flat / 60 pcs
Pin Connection: 7 5/8 REG
Bit Weight (KG): 154.0
Weight on Bit (KN/mm): 0.35 ~ 0.80
ROP (rpm): 80 ~ 180



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– High strength and wear resistance tungsten carbide, improve the strength and wear resistance of tooth.
– A new lip seal bearing structure to enhance the stability of seal structure.
– High temperature resistant hydrogenated buna-N sealing material is used to prolong the sealing life of bearings.
– A row of wedge trimmers is added between heel row and gage row compacts, so that it has double functions of trimming borehole wall and protecting cone shell.
– The shirttail and head OD are protected by welding wear-resisting alloy and cemented carbide tooth.
– X feature, the main cutting teeth of the cone are wedge-shaped teeth, which have the characteristics of high cutting efficiency and strong anti-breaking ability for specific medium-soft to medium-hard formations, effectively improving the drilling speed of the drill bit and prolonging the service life of the drill bit.
– T feature, there is a trimming row between the gauge row and bevel row to protect the cones and trim the well wall.