Product Description 
Size from 3 7/8" to 26" 
Covers almost all IADC code. 
Stocks adequate&timely delivery 
Good quality and after-sale service 
30 years experience in tricone rock bit 
Product Feature 
Tungsten carbide insert rock bits,can be written as TCI rock bits which is mainly used to drill hard and abrasive formations. When drilling hard and abrasive formations with steel tooth rock bits, an excessive wear of the teeth may occur,so,TCI bits is going to replace.Generally,TCI bits can achieve better wear resistance and excellent cutting abilities when compared with tooth type bits.Regular and standard Jet circulation are all available according to IADC Code. 
Product Specification/Models 
517Medium Formation TCI Tricone Bits 
The 517 features aggressive chisel tungsten carbide inserts on the heel rows and inner rows.This design provides a fast drilling rate and added cutting structure durability in medium-to-medium hard for-mations.The HSN rubber O-ring provides adequate sealing for bearing durability.