TCI Tricone Rock Bit for water well or oil well - 8 1/2", 9 1/2" ,12 1/4" ,17 1/2&quo

tricone bit Cutting structure:

very long widely spaced ,chiselshaped inserts and considerable cone axis offset against center line of bit ensure very high penetration rate .

To secure the bit from diameter loss, the gage protection inserts have got shorter length and greater angle of the top.

Formations: long intervals of very soft poorly compacted shales ,sandstone, clays, salts and soft limestones.

Hejian Zhankui Drilling Equipment Co.,Ltd
We are the largest drill equipment company in our area and found in 1980.We professoinal produce and supply the PDC bit,diamond bit ,tricone bit(TCI bit & steel tooth bit),Rotary drill bits,hole openers,drag bit,drill pipe,drill collar,stabilizer ,Casing Centralizer ,cement basket,casing pips,Hammer union,Float collar & shoe ,Joint ,and other drill accessories.Our company is a professional produce and supply PDC bit and tricone bits with great quality and competitive price.

If you have any request ,please feel free to let me know :

drillbits5(A-T)zkdrilling(D-O-T)com
weiwei,

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 Medium 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.