5 1/2″ SHA517GT


Size: 5 1/2″ (139.7 mm)
IADC: 517
Bearing and Seal: Journal Bearing / O-Ring Rubber seal
No. of Rows: 4-3-3
Inner Row: Chisel / 47 pcs
Gauge Row: Wedge / 42 pcs
Trimming Row: Wedge / 5 pcs
Bevel Row: Ovoid / 57 pcs
Pin Connection: 3 1/2 REG
Bit Weight (KG): 14.5
Weight on Bit (KN/mm): 0.35 ~ 1.05
ROP (rpm): 50 ~ 120



  • Check Mark Incredible Selections
  • Check Mark Custom Designs
  • Check Mark Quality Guaranteed
Contact us:

– Adopting the Journal bearing structure, it has the ability to withstand medium WOB and adapt to higher ROP.
– The O-ring seal is made of wear-resistant and high-temperature-resistant fluorinated high-saturated nitrile rubber, which effectively improves the reliability of the bearing seal and thus increases the service life of the drill bit.
– The oil storage system can balance the pressure difference inside and outside the bearing, and provide good lubrication guarantee for the bearing system.
– High-strength and wear-resistant carbide teeth are used, and the number of tooth rows, number of teeth, height of exposed teeth and tooth shape are optimized to improve the efficiency and life of the cutting structure 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.