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[Province: Hebei ]   
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tungsten carbide 8 1/2 inch insert rock roller bit
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tungsten carbide 8 1/2 inch insert rock roller bit

Price: 500.0~3000.0 USD
Trade Term: FOB
Payment Terms: T/T,L/C,WU
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Basic Info.
  • Application: Coal 
  • Type: Drilling Rig 
  • Brand Name: Tengda 
  • Diamater: 8 1/2 inch 
  • Type: Drill Bit 
  • Material: Tungsten carbide 
  • Machine Type: Drilling Equipment 
  • Processing Type: Forging 
  • Drilling formation: Medium formation 
  • Use: Well Drilling 
  • Model No.: TD617 
  • Place of Origin: Hebei  
  • Min.Order: 1 Piece/Pieces
  • Means of Transport: Ocean, Air, Land
Supply Capacity
  • Production Capacity: 500 pcs per month
  • Packing:plywood box
  • Delivery Date: 7-20 days
tungsten carbide 8 1/2 inch insert rock roller bit

Available size: From 3 3/4'' to 26''.Also we have hole opener.Reamer Bit
Size can be produced as customers request.
IADC: Steel tooth Milled tooth
117(115)127(125)137(135)
217(215)317(315)327(325)
TCI-Tungsten Carbied Insert
417(415)427(425)437(435)
517(515)527(525)537(535)547(545)
617(615)627(625)637(635)
717(715)727(725)
817(815)827(825)
Bearing:Rock roller bearing,rubber sealed bearing,Metal sealed bearing.


1.Cutting structure
The durability of premium tungsten carbide insert is improved with new formulas and new techniques
2.Gauge Structure
Gauge protection with gauge inserts on the surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability.
3. Bearing Structure
Air cooling roller bearing package. Balls lock the cone which reduces the probability of cone-dropping to minimum.
4. Product Application
It is suitable for mining applications.

rock roller bit:
tungsten carbide 8 1/2 inchinsert rock roller bit
tungsten carbide insert rock roller bit


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Mr. jesonding
Tel: 86-317-3229226
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Contact Method
Hejianshi Tengda Petroleum Supplies Co.,Ltd
junziguan xicun town hejiancity, Cangzhou, Hebei, China (Mainland)
Fax: 86-317-3226086
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