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Down Hole Eccentric Water Well Polycrystalline Diamond Drill Bits

3000.0 USD
Min. Order: 1 Set/Sets
Trade Term: FOB,CFR,CIF,DAT,FAS,DDP,DAP,CIP,CPT,FCA,EXW
Payment Terms: Paypal, L/C, D/P, D/A, T/T, WU, Money Gram
Supply Ability: 20000 sets per year
Place of Origin: Hebei

Company Profile

Location: Shijiazhuang, Hebei, China (Mainland)
Business Type: Manufacturer

Product Detail

Means of Transport: Ocean, Air, Land
Price :: Negotiation
Payment Terms :: L/C, T/T, Western Union
Packaging Details :: Wooden cases and boxes
MOQ :: Negotiation
Supply Ability :: 20000 pcs per year
Material :: Carbide
Application :: rock drilling
Use :: Well drilling rock drill
Processing :: Forging
Type :: Drill Bit
Production Capacity: 20000 sets per year
Packing: Wooden case or naked
Delivery Date: Within 7-15 days
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Product Description

Down Hole Drilling Bit Eccentric Drill Bit Long Life Span Drilling Tool



1. Product description


The eccentric bit is a bit whose center of the bit deviates from the axis line due to the asymmetrical distribution of steel body or tire body around the axis line of the bit.When the bit turns, a lateral force (centrifugal force) is created to cut the hole wall, making the aperture larger.

The eccentric bit is used for the expansion of depth or easy shrinkage hole section under extended casing.


2. Main parameter


Product Parameter
Product Namedrill bit
Hole diameter200-800mm
Hole depth100-900m
Drilling speed

300MM/MIN


Impact energy

1500


Impact frequency

2850HZ



3. Scope of application:


Drilling blasting holes, guardrail holes, mountain reinforcement, anchoring and other engineering holes in mines, quarries, highways, geothermal air conditioning holes, Wells and other fields

DHD/QL/Mission series impellers with high air pressure drill


4. Features of down-hole dril bit:


The down-hole drill is a kind of drill which is used in conjunction with the down-hole impactor.

It is widely used in mining/quarry/hydro-power engineering/drilling well/side column support, etc.

It is divided into: low pressure down-hole drill, medium and high wind pressure down-hole drill.

The drill is used in combination with the drill hammer, which has the characteristics of straight drilling, fast speed and deep drilling.


5. Characteristics:


During the follow-up drilling of complex formations, the selected drilling parameters should be based on the principles of low speed, low feed pressure, and high return air speed.


During the construction operation, the hardness and looseness of the rock in the drilled formation should be selected. Factors such as water content and water content control the drilling speed. When drilling encounters formations with particularly loose or large fractures, it is especially necessary to reduce the feed speed and feed pressure, and repeatedly carry out slag removal and hole cleaning.

Down Hole Eccentric Water Well Polycrystalline Diamond Drill Bits

Quality Control


We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.


 After Sale Services


a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
c. Free replacement will provide once the failure confirmed caused by our product quality


Package and shipping


Packing : DTH DHD hammer will pack in cardboard and plywood case.

Shipping : DTH DHD hammer will ship by sea , by air , by Express , etc 


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