437 Soft Formation TCI Tricone Bits
The 437 tci bits are used to drill low compressive strength, very soft formations. TCI bits maximize the use of bothconical and chisel tungsten carbide inserts of large diameters and high projection. This cutting structure desigh, combined with maximum cone offset, result in high bit penetration rates. The deep intermesh of cutter rows prevents bits bailing in sticky formations.
517 Midumum Formation TCI Tricone Bits
The 517 features aggressive chisel tungsten carbide insert 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 HAN rubber O-ring provides adequate sealing for bearing durability.
617 Medium-Hard Formation TCI Tricone Bits
The 617 features robust chisel tunsten carbide inserts on the heel row and conical on the inner rows. This design provide a fast drilling rate and added cutting structure durability in medium to medium hard formations. The HSN rubber O-riprovides adequate sealing for bearing durability.
637 Hard Formation TCI Tricone Bits
The 637 bits can be used drill hard and abrasive forma-tions. Ware-resistant tungsten carbide inserts are used in the outer rows to prevent loss of bits gauge. Maxmum numbers of hemisphercal-shaped inserts are used in all rows to provide cutter durability and long life.
