hole opener

1. Manufacturer of TCI & steel tooth tricone bits 2. ISO & API 3. Quality products & good service 4. from 3" to 26"

1. Cutting Structure

The reamer mainly consists of four or more cones. Cutting Structure with premium tungsten carbide hardfacing or premium tungsten carbide insert of formulas and new techniques is utilized, and increases wear-resistance capability of reamer. The pilot is three cone bit (tricone bit).

2. Seal and Lubrication

High performance HNBR O-ring for bearing seal and advanced grease for lubrication.

3. Product Application

It is suitable for the large size well, mining and infrastructure applications.

4. Main Availability, ( Bit sizes and cone types can be customized as you special order)

Big Reamer & Piling Bit
Cutting Structure	The reamer always have multi-cones. Bit cones are splited from tricone bits and welded to build a new big diameter bit. The pilot is three cone bit.
Product Application	Bigger diameter for piling in construction field, bridge construction, super highway construction, railway construction etc. This kind of bits are suitable for different complex formation, shales, limestone, cobblestone, dolomite, chert, etc.
Main Type Available	Regular Bit Diameters: 28 ",32",36",38", etc, and any diameters can be customized, maximum diameter is 1600mm.

TCI bits series:

Soft formation TCI bits:

The soft formation TCI bits are used to drill low compressive strength, very soft formations. This bit maximized to use of both conical and chisel tungsten carbide inserts of large diameters and high projection. 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.

Medium formation TCI bits:

The medium formation TCI bits 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.

Hard formation TCI bits:

The hard formation TCI bits can be used to drill hard and abrasive formations. Wear resistance tungsten carbide inserts 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. 

Medium hard formation TCI bits:

The medium hard formation TCI bits features robust chisel tungsten carbide inserts on the heel row and conical on the inner rows. 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.

Steel tooth bits series:

Soft formation tooth bits:

The soft formations tooth bits are used to drill low compressive strength, soft formations. Long projection tooth lengths are used on high offset cones to provide the greatest penetrations rates possible. Wear resistance hard facing is used to control tooth wear. On the softest bit types this hard facing completely covers the bit teeth.

Medium hard formations tooth bits:

The medium hard formation tooth bits are used to drill high compressive strength, medium hard formations. Shoot projection teeth with reduced crest length are used in this series of bit designs. Durable hard facing is applied to reduce tooth wear.

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