API 12 1/4"IADC135 Steel Tooth Bit Tricone Drill Bit for Well Drilling
Steel Tooth Bit Tricone Drill Bit is the most popular drilling bit in the world which can be widely used for Oil and Gas Drilling,Mining,Water Well,Geological Exploration areas.
The IADC code from 114 to 315 can meet your difference hard formation drilling.
Also you can tell us the drilling formations,then we can offer professional suggestion for suitable IADC.

API 12 1/4"IADC135 Steel Tooth Bit Tricone Drill Bit for Well Drilling
Bit Diameter	12 1/4”= 311 mm
IADC Code	135
Product Standard	API Spec. 7-1
Pin Thread	API Reg. 6 5/8"
Sealed Bearing	O-Ring Sealed Roller Bearing
Normal WOB	0.25~0.70 KN/MM (Bit Diameter)
Gross / Net Weight	85 / 95 Kgs
Packing Size	350 X 350 X 420 mm
Rotary Speed	200~80 RPM
Cutting Structure	Offset crested scoop compacts in inner row,wedge compacts in outer row,imequable spaced compacts arrangement,and a row    of trimmers is added between gage row and heel row
Drilling Formation	Medium soft with low compressive strength and harder abrasive stringers,such as hard shale,hard gypsolyte,soft       limestone,sandstone and dolomite with stringers,etc.

Additional Features which you can choose
	G - Gauge Protection Special carbide inserts are strategically fixed on the back of cones to effectively reduce wear in abrasive formation and directional and horizontal wells and extend the bit life.
	C - Center Jet Center jet can avoid bit balling,eliminate resorting area of fluid at bottom hole,expedition upward flow of cutting and improve ROP.Its suitable for drilling in soft to medium soft formations with low compressive strength and high drill ability.
	T - Enhanced Carbide Inserts The enhanced carbide inserts in heel ,gage rows and head OD can make the bit to work long time and better performance when drilling in more abrasive ,hard and extreme hard formations.
	L - Bit Stabilization The function of bit stabilization is for improving working situation of bit,which can effectively protect head and compensator recess in well drilling.

Company Profile
 

Cangzhou East Drilling Tools Co.,Ltd is a China manufacturer of tricone bit,PDC bit,hole opener,drag bit.

Our company has worked on production and international business more than 15 years and have exported to America,
United Kingdom,Canada,Italy,Dubai,Singapore,Brazil,South Africa and so on.
We have professional team to offer good quality drilling bits and tools,also can provide creative solutions for you. 


 

EAST Drilling Tricone Bit Stock List for Normal Types
Bit Diameters	IADC Code	Pin Size	Net/Gross Weight	Stock Quantity
6”=152 mm	117,127,437,517,537,637	API Reg. 3 1/2"	18/20 Kgs	20 Pieces
7 7/8"=200 mm	116,117,127,537,637	API Reg. 4 1/2"	32/35 Kgs	20 Pieces
8 1/2"=215.9 mm	117,127,437,517,537,637	API Reg. 4 1/2"	40/45 Kgs	50 Pieces
9 1/2"=214.3 mm	117,127,437,517,537,637	API Reg. 6 5/8"	50/58 Kgs	30 Pieces
9 7/8"=250 mm	117,127,437,517,537,637	API Reg. 6 5/8"	55/68 Kgs	20 Pieces
12 1/4"=311 mm	117,127,437,517,537,617,637	API Reg. 6 5/8"	80/95 Kgs	32 Pieces
13 5/8"=346 mm	117,127,437,517,537	API Reg. 6 5/8"	110/125 Kgs	12 Pieces
14 3/4"=375 mm	117,127,437,517,537,617	API Reg. 7 5/8"	130 /145 Kgs	12 Pieces
17 1/2"=444.5 mm	117,127,437,517,537,637,737	API Reg. 7 5/8"	270/290 Kgs	15 Pieces
Notice:  the stock was changed every day,if you need ready stock,pls confirm with us in advance.