Wholesale Price Down The Hole Drill Pipe - Concentric Casing System – TDS

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Wholesale Price Down The Hole Drill Pipe - Concentric Casing System – TDS Detail:

A driver bit and a ring are assembled to a complete concentric system bit which is suit for 114-1067mm diameter tube.

Advantage:

1. Enhance penetration and perpendicularity
2. Reduce torque requirements
3. Deal with straight, oblique hole and other angle holes
4. Lowest effect with environment

External dia.(mm): 125/155/188/215/238/276/293/345/375/432…1090
Casing dia.(OD*ID,mm): 114*102/139*127/168*153/194*181…1067*1041

Outer Dia Of Casing Tube (mm)	Inner Dia Of Casing Tube(mm)	Reamed Dia(mm)	Min Inner Dia Of Casing Shoe(mm)	Drill Pipes(mm)	Max.Outer Dia of Normal Bit(mm)
114	101-103	127	91	76	77
127	114-116	136	101	76	82
140	124-127	152	117	76	92
146	127-132	154	117	76	105
168	149-155	184	140	76	105
178	159-165	194	150	76.89	125
193	173-180	206	164	76.89	140
219	199-206	234	184	89.114	150
244	224-231	260	210	89.114	165
273	251-257	305	240	114	190
323	301-310	348	284	114.127	220
406	382-388	440	364	127	255
457	433-439	488	413	140	340
508	484-490	538	464	140	385
558	534-540	590	514	140	440
610	586-592	642	566	140	485
660	636-642	694	615	168	540
711	687-693	745	665	168	590
762	738-744	798	716	168	640
863	839-845	900	815	168	685

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Persisting in "High high quality, Prompt Delivery, Aggressive Price", we've established long-term cooperation with clients from the two overseas and domestically and get new and old clients' superior comments for Wholesale Price Down The Hole Drill Pipe - Concentric Casing System – TDS , The product will supply to all over the world, such as: UK, Libya, Denmark, We integrate design, manufacture and export together with more than 100 skillful workers, strict quality controlling system and experienced technology.We keep long term business relationships with wholesaler and distributors form more than 50 countries, such as USA, UK, Canada, Europe and Africa etc.

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