17 1/2″ SGA115


Size: 17 1/2″ (444.5 mm)
IADC: 115
Bearing and Seal: Roller Bearing / O-Ring rubber seal
No. of Rows: 3-2-2
Inner Row: Wedge mill teeth / 28 pcs
Gauge Row: Wedge mill teeth / 50 pcs
Trimming Row: Wedge / 24 pcs
Bevel Row: Flat / 39 pcs
Pin Connection: 7 5/8 REG
Bit Weight (KG): 223.0
Weight on Bit (KN/mm): 0.20 ~ 0.60
ROP (rpm): 80 ~ 180



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

– Applied with new tooth bits design, with hardfacing on the tooth surface and bevel of the cones. Attached carbide inserts on the bevel of cones as well to protect the diameter.
– The new roller bearing structure is adopted, which prolongs the working life of the bearing, and has the ability to withstand medium bit pressure and adapt to higher speed.
– 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.
– T feature, there is a trimming row between the gauge row and bevel row to protect the cones and trim the well wall.