Factory Direct: 8.5 215.9mm IADC 127 Steel Tooth Tricone Bit

1. Roller bits for Mining and Rock Drilling The strength and wear resistance of inserts are improved 1. Roller bits for Mining and Rock Drilling The strength and wear resistance of inserts are improve by using carbide inserts with high strength and high wear resistance. Surface of the high precision bearing heat treated by using advanced heat treatment process to improve the load capacity and service life of the bearing. The service life of the bearing is further extended by adopting harder and mort wear resistant Material for thrust bearing. Preventing reflux structure has dual function, it can avoid air counterflow and dust entering into bearing when the air-compressor stop working accidentally, and separate air and water in order to avoid water entering into bearing when it works normally to prolong the life of bearing. 2. Roller bits for Oil Drilling 1. This series tricone bit use Sealed roller bearing structure. With rollers arranged in grooves recessed in the cone body, the size of the bearing journal is increased. 2. Thrust bearing surfaces are hardfaced and treated with friction reducing technology. 3. Ball locked cone, suitable for high rotary speed. 3.Steel teeth Tricone bits 1 This series tricone bit use Journal bearing. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. The load capacity and seizure resistance of the bearing is greatly improved. 2. O ring seal is made of the more wear resistance high saturated buna-N with the increased seal section and precisely designed sealing flange in the cone sealing area increased the reliability of the seal. 3. The bit bearing can be ball locked 4. For steel tooth bit, the tooth surface is hardfaced with new type of wear resistan Material and thus extended working life of the cutting structure while still maintaining high ROP

IADC code(the main)	417 427 437 517 527 537 617 627 637737 837 832 415 425 435 445 525 625635 416 427 436 446 447 516 526 536 535 537 547
Available size	From 2 7/8” to 26”Larger sizes for hole opener bit,reamer bit
Bearing type	Sealed bearing and non-sealed bearingHJ(metal sealed journal bearing)HA(rubber sealed journal bearing) aircooled bearing type
Formation or layer	Soft, medium soft, hard, medium hard,very hard formation
Button size(extra fratures)	Button bit,saw steel1) Y-Conical teeth2) X- chisel teeth 3) K- wide teeth 4) G- Gauge protection
Material	Tungsten Carbide
Delivery terms	By sea or by air
Application	Petroleum & gas,water well, mining and tectonic industries,oil field,construction,geothermal,directional boring,and underground foundation work
Packing	wooden case
Payment Term	T/T(30% downpayment and 70%balance before shipping.)
MOQ	1 Piece
Supply Ability	1000 Pieces/month
Delivery Time	within 10-15 work days

Application Apply to Construction, Water Drilling, Mining, Horizontal Directional Drilling, Geothermal and Environ-mental.

IADC code 217 with 3 Nozzles and Dia 8-1/2", Steel tooth rock tricone bit Three Tooth Bit

IADC CODE SELECTION

IADC	WOB	RPM	Application
IADC	(KN/mm)	(r/min)	Application
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	0.3-0.85	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 limits of WOB and RRPM should not be used simultaneously

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