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7 1/2'' 190mm Symmetric Overburden Casing Drilling System Casing Drill Bit

7 1/2'' 190mm Symmetric Overburden Casing Drilling System Casing Drill Bit

  • 7 1/2'' 190mm Symmetric Overburden Casing Drilling System Casing Drill Bit
  • 7 1/2'' 190mm Symmetric Overburden Casing Drilling System Casing Drill Bit
  • 7 1/2'' 190mm Symmetric Overburden Casing Drilling System Casing Drill Bit
7 1/2'' 190mm Symmetric Overburden Casing Drilling System Casing Drill Bit
Product Details:
Place of Origin: China
Brand Name: MIROC down the hole hammer drill tool
Certification: ISO9001
Model Number: DTH Button Bit
Payment & Shipping Terms:
Minimum Order Quantity: 1 Pieces DTH Button Drill Bit
Price: Negotiation
Packaging Details: Carton Box or Wooden Box
Delivery Time: 25 days
Supply Ability: 20000 pieces per month
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Detailed Product Description
Name: Overburden Casing Drilling System Casing Drill Bit Application: Water Well Drilling, Quarry Drilling, Construction Rock Drilling
Drill Method: Concentric Casing Drilling Hammer Type: DHD360 - 6''
Diameter: 7 1/2'' ( 190mm ) Casing Face: Drop Center, Concave, Convex, Flat
Button: Spherica,parabolic, Ballistic Process: Forging
Certification: ISO9001 Color: Green Blue Or Based On Demand
High Light:

190mm casing drill bit

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7 1/2'' casing drill bit

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ISO9001 casing drill bit

7 1/2'' 190mm Symmetric Overburden Casing Drilling System Casing Drill Bit

 

Product Description

 

Symmetric is a system comprised of an ingeniously simple concentric method of drilling through overburden with casing. Symmetric can drill straight holes at any angle (including horizontal) and to depths beyond 100 meters. Working together as one efficient drill bit, the components are made up of:


A pilot bit with large internal flushing holes and external flushing grooves.
Symmetrical ring bit (reamer) with internal bayonet coupling
Casing shoe for driving of casing.


The pilot bit is attached to any common DTH hammer shank or top hammer rod thread.The below size of Symmetric systems which are available, and the special design is upon customer’s requirement:
Symmetric 114, Symmetric 127, Symmetric 140, Symmetric 146, Symmetric 168,
Symmetric 178, Symmetric 195, Symmetric 219, Symmetric 243, Symmetric 273.

 

Specification

Casing outer dia.(mm) Casing thickness(mm) Ring bit dia.(mm) Max.dia. of normal bit(mm)

Suitable hammer

(inches)

Retrievable
114 10 126 84 3.5 No
122 Yes
127 10 142 93 3.5 No
135 Yes
140 10 161 97 4 No
148 Yes
146 10 165 110 4 No
154 Yes
168 12 188 127 5 No
180 Yes
178 12.7 196 131 5 No
185 Yes
194 12.7 214 145 6 No
202 Yes
219 12.7 243 170 6 No
228 Yes
 

7 1/2'' 190mm Symmetric Overburden Casing Drilling System Casing Drill Bit 0

7 1/2'' 190mm Symmetric Overburden Casing Drilling System Casing Drill Bit 1

Our Factory

7 1/2'' 190mm Symmetric Overburden Casing Drilling System Casing Drill Bit 27 1/2'' 190mm Symmetric Overburden Casing Drilling System Casing Drill Bit 3

 

 

Contact Details
KSQ Technologies (Beijing) Co. Ltd

Contact Person: Yingkai

Tel: +8618501231988

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