Application   Tricone bits, It can receive higher WOB and faster rotary speed than conventional roller bearing bits.It is suitable for high POM applications. Some may also call roller cone bits or tri-cone bits, have three cones. Each cone can be rotated individually when the drill string rotates the body of the bit. The cones have roller bearings fitted at the time of assembly. The rolling cutting bits can be used to drill any formations if the proper cutter, bearing, and nozzle are selected. Characteristics Cutting Structure The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.The durability of premium tungsten carbide inserts is improved with newformulas and new techniques for insert bit. Gauge Structure Multiple gauge protection with gauge trimmers on the hell andgauge inserts on the gauge surface of the cone,tungsten carbide inserts and hardfacing on the shirttail increases gague holding capability and bearing life. Bearing Structure High precision roller bearing with two thrust faces,Ballk lock the cone,.The leg bearing can get larer by arraning the roller in groove of the cone hole,so it can receive more Wob,and suitable for high RPM.Thrust faces hardfaced with wear resistant alloy,Abrasion resistance and seizure resisitance of the bearing are inproved. Sealand Lubrication Premium HNBR O-ring,optimal seal compression and curved seal structure can enhance seal performance. The pressure compensator system and adwanced grease can greatly increase the lubricating reliability. Guidance of Tricone Bit Choice

IADC	WOB(KN/mm)	RPM(r/min)	APPLICABLE FORMATIONS
114/116/117	0.3~0.75	180~60	Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc.
124/126/127	0.3~0.85	180~60	Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc.
134/135/136/137	0.3~0.95	150~60	Soft to medium formations with low compressive strength and high drillability, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc.
214/215/216/217	0.35~0.95	150~60	Medium formations with high compress strength, such as medium soft shale, hard gypsum , medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc.
227	0.35~0.95	150~50	Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble,etc
Note: The upper limits of WOB and RPM in above table should not be used simultaneously.

Guidance of tricone Bits ChoiceTricone Bits Tooth Type Bits Size

Bit Size		API REG PIN	Torque	Weight
Inch	mm	Inch	KN.M	Kgs
3 3/8	85.7	2 3/8	4.1-4.7	4.0-6.0
3 1/2	88.9			4.2-6.2
3 7/8	98.4			4.8-6.8
4 1/4	108			5.0-7.5
4 1/2	114.3			5.4-8.0
4 5/8	117.5	2 7/8	6.1-7.5	7.5-8.0
4 3/4	120.7			7.5-8.0
5 1/8	130.2	3 1/2	9.5-12.2	10.3-11.5
5 1/4	133.4			10.7-12.0
5 5/8	142.9			12.6-13.5
5 7/8	149.2			13.2-13.5
6	152.4			13.6-14.5
6 1/8	155.6			14.0-15.0
6 1/4	158.8			14.4-18.0
6 1/2	165.1			14.5-20.0
6 3/4	171.5			20.0-22.0
7 1/2	190.5	4 1/2	16.3-21.7	28.0-32.0
7 5/8	193.7			32.3-34.0
7 7/8	200			33.2-35.0
8 3/8	212.7			38.5-41.5
8 1/2	215.9			39.0-42.0
8 5/8	219.1			40.5-42.5
8 3/4	222.3			40.8-43.0
9 1/2	241.3	6 5/8	38-43.4	61.5-64.0
9 5/8	244.5			61.8-65.0
9 7/8	250.8			62.0-67.0
10	254			68.0-75.0
10 1/2	266.7			72.0-80.0
10 5/8	269.9			72.0-80.0
11 1/2	292.1			79.0-90.0
11 5/8	295.3			79.0-90.0
12 1/4	311.2			95.0-102.
12 3/8	314.3			95.0-102.2
12 1/2	317.5			96.0-103.0
13 1/2	342.9			105.0-134.0
13 5/8	346.1			108.0-137.0
14 3/4	374.7	7 5/8	46.1-54.2	140.0-160.0
15	381			145.0-165.0
15 1/2	393.7			160.0-180.0
16	406.4			200.0-220.0
17 1/2	444.5			260.0-280.0
26	660.4			725.0-780.0

Tricone Bits package

Minimum Order Quantity	N/A
Price
Packaging Details	Standard Export Delivery Package
Delivery Time	7days
Payment Terms	T/T
Supply Ability	Based on Detailed Order