Heng Ji Supply Tricone TCI Bit of Geothermal Drilling

• Manufacturing Process: CNC Milling
• Surface Treatment: Polishing
• Material: Carbide
• Transport Package: Wooden Case
• Specification: 3 7/8-7 5/8 in
• Trademark: hengji
• Model NO.: 3 7/8-7 5/8
• Origin: Hebei Hejian
• HS Code: 82071990
• Production Capacity: 3000piece/Yezr

Product Description

437 
Soft Formation TCI Tricone Bits 
This cutting structure design,combined with maximum cone offset,results in high bit penetration rates.The deep intermesh of cutter rows prevents bit bailing in sticky formations . 

517 
Medium Formation TCI Tricone Bits 
This design provides a fast drilling rate and added cutting structure durability in medium-to-medium hard formations .The HSN rubber O-ring provides adequate sealing for bearing durability. 

637 
Hard Formation TCI Tricone Bits 
The 637 bits are used in the outer rows to prevent loss of bit gauge .Maximum numbers of hemispherical shaped inserts are used in all rows to provide cutter durability and long life . 

617 
Medium-Hard Formation TCI Tricone Bits 
This design provides a fast drilling rate and added cutting structure durability in medium to medium hare formations .The HSN rubber O-rin provides adequate sealing for bearing durability.