COP44, DHD340 Bit Shank Down The Hole Drill Button Bits

COP44, DHD340 Bit Shank Down The Hole Drill Button Bits

COP44, DHD340 - 115mm drill bit.

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Product Details

Basic Info

Model NO.: COP44, DHD340-115mm
Trademark: BD DRILL
Origin: China
HS Code: 8207199000

Product Description

Down the Hole drill button bits with COP44, DHD340 bit shank

Product Description 
Down the hole(DTH) tools manufacturer Black Diamond supply DTH Drill Bits are available in a wide range of sizes and with a number of custom design features for optimum performance in a rock formation, which are designed to match all conceivable applications for water well industries, mining and construction.
Bit head shape selection: Drop Center Bit, Concave Face, Convex Face,

Double Guage Face, Flat Face Bit.

Bit face selection

Carbide button shape selection: Spherical, Parablic , Ballistic , Sharp , Flat.

Bit Shank: QL, COP, SD, DHD, MISSION, BR, CIR, etc.

Bit Shanks

Technical Date 

Note: We can also design and manufacture the different diameter, holes number, carbide button shape and face shape according to the customers' requirement.

How to choose the suitable head face of the DTH drill bit?
1. Concave: 
Suitable for all kinds of formation, especially for deep well drilling, perpendicularity of the hole is wonderful.
2. Convex:  
Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.
3. Flat:         
Suitable for special hard formation stratum, especially for fracture, crack spacing and complex formation drilling effect is very good, has the good perpendicularity of the borehole.

Our Advantages as below:
1. High quality steels materials. Tungsten carbide are YK05, or T6 from Element Six in Germany
2. BD Drill DTH tools are forged by advanced electron-hydraulic forging hammer.
3. Advanced heat-treatment equipment: Aichelin brand multipurpose furnace heat treatment.
4. Completed moulding (tooling ) departments with many molds available.
5. Professional R&D team,completed quality system.
6. Strict Quality-Check Systems.

The information you may like to know before order:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight, other payment terms are negotiable.
2. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 3 or 5 days if we have stock on your request size.
3. Shipping way
Sample order: We suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: We suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for each order before shipping out.
5. After Services:
1. Our sales team will response for your question within 24 hours (Holidays Excluded)
2. Technical Support will be available in any time

Our Service
Pre-sale service:
*Inquiry and consulting support
*Sample testing support.
*View our factory

After-Sale Service
*Traning how to install the machine, training how to use the machine.
*Engineers available to service machinery overseas.

Product Application:
Main used for mining, quarrying and construction projects.

About our Company 

Changsha Heijingang Industrial Co., Ltd is established in 1999. Located in Changsha, Hunan, China, which is the most famous city of heavy machinery industry, we are one of the leading manufacturers specialized in researching and producing DTH hammer, DTH bit, thread DTH bits, top hammer drill bits, RC drill hammer & bits, Trincone bits, taper DTH bits, coupling sleeve, drill rods, Shank adapter, Casing drilling system, and so on. 

With 700 + employees and our manufacturing facilities of over 575,000 sq. ft. we are able to produce and sell every year more than 20,000 hammers and over 250,000 DTH/RC bits.

With over 20 years experience in this line, BD DRILL has established a reputation for outstanding commitment to product quality, innovation and most importantly customer service.

Package and Delivery:
Packed by Carton or Plywood cases.

  1. Goods in stock can be delivered within 5 days.

  2. DTH Bits production time is about 15 days.

  3. DTH Hammer product time is about 20 days.



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