12 1/4" IADC637 roller cone bit

Quality is our Bank(HM 210307)

Welding type roller cones bits

Tricone bits for foundation drill

Roller bits for Core Barrel

Roller bit is mounted on the bottom ring of the core barrel for cutting an annular ring in hard and extremely hard rock. They come in different diameters. Roller Cone bits are classified to welded type and replaceable type.
Features of Roller Bit:
1. Optimum carbide grade and shape are chosen according to geology.
2. High quality steel with advanced heat treatment technology ensures the good performance of roller bit.
3. Good quality bearing provides high bearing capacity.
4. Reliable sealing system.

Product line :Casing tools and holders, round shank bits, Welding bars, quick change bars and holders ,weld on casing bar, stop wedge and screw connections etc.
Replacement of Betek No: B43/3,B1HDk12,B3,B3K,B1HDK12K,B40HDK12,B40HDS,B40/3,B40K17.B40/9,B47KH17,
B47K19,B47KH22, B47K22/60, B47K25/57, etc.
Replacment of Kennamatel : C21HD,C23HD,RL08,RL09,RL10, RL11, C31,C31HD,B40HD,C4,U47HD,DS01,DS02,DS03,DS04,D0s5 etc. 

Q1.Are you a manufacturer or trading company?
- Yes, we have two factories and we are the leading manufacturer in China. Welcome if you have plan to visit our
factory and inspect the products.
Q2.How is your products quility?
- We manufacture products basic on serving our mother company which is a professional foundation construction company since 2003, we deal with machinery and spare parts problems and improve it
- With foundation construction company and manufacturers experience, we do know the important of the perfectness ratio of machine. Machine is our customer's bank and quality is our bank.
Q3.Do you accept sample order?
- Yes sure, please contact us for details.
Q4.How about your after-sales service?
As a manufacturer, we offer promote technology support for all problems and questions.
Besides, we accept goods return or replace for quality problem.
Q5.Where is your factory located in?
Our factory is located in Changsha city, Hunan province, China.