Different Types and Sizes of TCI Rock Bits & Tricone Bits

Model NO.: Tricone Bits Certification: AISI, API Type: Cone Drill Bit Use: Drilling Machine Delivery Terms: by Sea or by Air Trademark: HF Specification: CE Customized: Non-Customized Length: All Kinds Material: Diamond Model: TCI Bit, Steel Tooth Bit Button Size: Button Bit,Saw Teeth Transport Package: Wooden Case Origin: Henan, China Different Types and Sizes of TCI Rock Bits & Tricone Bits

The roller-cone bits are used to drill all kinds of formations, from soft to hard. The softer formations use steel-tooth bits, and the harder use tungsten carbide.
The biggest advantage the tricone bits have over any other drill bit is the test of time. They have been proven time and time again, and they're the best at controlling the trickier situations. Tricones' ability to handle both soft and hard formations gives them the flexibility that other drill bits do not have.
 

IADC	WOB	RPM	Application
	(KN/mm)	(r/min)
111/114/115	0.3-0.75	200-80	very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk
116/117	0.35-0.8	150-80	very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk
121	0.3-0.85	200-80	soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone
124/125		180-60
131	0.3-0.95	180-80	soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds
136/137	0.35-1.0	120-60
211/241	0.3-0.95	180-80	medium formations with high compressive strength, like medium, soft shake, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbeds.
216/217	0.4-1.0	100-60
246/247	0.4-1.0	80-50	medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite
321	0.4-1.0	150-70	medium abrasive formations, like abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble
324	0.4-1.0	120-50
437/447/435	0.35-0.9	240-70	very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk, gypsum, salt, soft limestone
517/527/515	0.35-1.0	220-60	soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone
537/547/535	0.45-1.0	220-50	soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds
617/615	0.45-1.1	200-50	medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite
637/635	0.5-1.1	180-40	hard formation with high compressive strength, like limestone, sandstone, dolomite, hard gypsum, marble
Note: Above limitts of WOB and RRPM should not be used simultaneously

PIN SIZE
 

Bit Diameter		API PIN
(inch)	(mm)
3 7/8"~5 1/4"	98~134	2 3/8", 2 7/8"
5 5/8"~6 3/4"	143~171	3 1/2"
7 1/2"~9 1/2"	190.5~241	4 1/2"
9 5/8"~13 3/4"	245~350	6 5/8"
14 5/8"~26"	371~660.4	7 5/8"

 

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