tungsten carbide button water well rock drill bit : Tungsten carbide insert (TCI) tricone bits are used for medium and hard rock formations. These bits are designed with smaller teeth, which are more closely arranged together. Drill speeds are higher when the rock face is harder and TCI can withstand the heat generated from these conditions. Mud is pumped down the drill string and out through the tricone bit to keep the bit clean from cuttings and to move these cuttings back to the surface.

Parameter of 12 1/4" metal sealed IADC 637 tricone bit     

General Date
Bit Size	12 1/4inch
IADC Code	637
Bearing Type	Journal bearing
Nozzle	3 NOS
Seal Type	rubber sealed
Connection Size	6 5/8"
Connection Type	API REG PIN
Nozzle size code	S4
Operate Date
Nozzle O.D.	32.89 mm
Assembly length of nozzle	26.97mm
Recommend Make up Torque	38~43.4 KN·M
Weight On Bit
Max KN/mm (Dia.Bit)	0.9
Min KN/mm (Dia.Bit)	0.35
Rotary Speed (RPM)	150~80 r/min

Semi finished product

My company information                                                      

Hejian Deris Petroleum Drilling Equipment Co., Ltd. Established in 2000 . Have 7 years export experienced . Both Professional Manufacturer and Supplier engaged in 3 " to 26" Tricone bit, 3 " to17 1/2" PDC bit, 300mm to 2000mm hole opener ,core barrel, single cone bit ,roller cone bits ,drag bit and drill pipe etc other drilling tools .
Products are widely used in petroleum, natural gas, hydrological address, ore drilling ,water well project , no-dig / Trenchless,Piling project . 
Introducing the latest technology, advanced production equipment, Perfect testing system to e nsure superior quality .The company has a group of experienced designers and engineers who provide specialized solutions in the field of drilling.
 Over the years, the high quality products have been exported to more than 30 countries and regions such as the United States, Canada, Germany, Iran, Qatar, Chile and Southeast Asia at reasonable prices.

Certificate                                                                            

 Package and shipping                                                       

Package Type : wooden case ,also be packaged according to customers requirement 

Transportation : by sea , by air or land transportation . Less than 50kg shipping by courier better 
Delivery : If we have stock, the delivery time will need about 2~3 working days. In general, common size tricone bits and pdc bit, we have stock.
If we have no stock, such as the tci reamer and pdc hole opener, it will be 7-10 working days in total.

How about our Customers feedback ?                                         

The drilling deepth more than 460meters 1 pc Metal seal bearing tci tricone bit  .

TCI Tricone bit Drilling 3500 meters well no problem 

1 pc Hole opener drilling more than 10 well no problem 

Drilling to 1600 meter the PDC drill bit continue work good enough 

If you are interested in our products please send Email to us 

Our service 

 1 We are manufacture can supply good quality goods and competitive price
 2  We not only have ourselves design but also can accept customization
 3  We have fast and on time delivery time
 4  Every bits have it's quality assurance 
 5 Contact our anytime if you have any question with bits.
 6 Technical supply online