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Changsha Chaojingang machinery manufacturing CO., Ltd
Super Diamond, The more use, the more efficient!
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4 1/2" 115mm DHD340 Mining Drill Bits Superior Alloy Steel High Performance

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Changsha Chaojingang machinery manufacturing CO., Ltd

City: changsha




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4 1/2" 115mm DHD340 Mining Drill Bits Superior Alloy Steel High Performance

Brand Name Super Diamond
Model Number DHD340
Certification ISO9001:2018
Place of Origin China
Minimum Order Quantity 1 piece
Price Negotiate
Payment Terms T/T, L/C, Westem Union
Supply Ability According to order quantity
Delivery Time About 10-25days
Packaging Details Carton packaging and wooden box packing
Material: Superior Alloy Steel
Application: Water Well Drilling Or Mining
Advatage: High Performance And Long Service Life
Color: Gold Or You Wanted
Head Shape: Flat Face Bit/Concave Face/Convex Face
Spline Key Number 8 Splines
Detailed Product Description

DTH Drill Bits 4 1/2”(115mm) For Down The Hole Hammer DHD340, concave face


About us:


Changsha Chaojingang machinery manufacturing CO., Ltd is a modern high-tech enterprise, which is specialized in researching and manufacturing rock drilling machine and pneumatic tools.

We have rich experiences for scientific research and production. It produces prime property and quality rock drilling products prime property and quality rock drilling products by using high-quality raw materials, utilizing advanced production technology and imposing strict quality inspection.

Our products produced by Super Diamond are sold well all over China and exported to over 20 countries, such as Korea, Brazil, Australia, and South Africa etc, high praised by users for its prime property and quality.




1. Rapid drilling speed, bit body wearless;

2. Advanced heat treatment process, ensure the drilling life longer than similar products in the market.

3. DHD, MISSION, SD, QL, NUMA,different series of products, it can meet needs of different working conditions.




Widely used in mines, quarries, earthworks and other engineering drilling blasting hole, guardrail hole,mountain reinforcement, anchorage and other engineering holes, geothermal exploration hole, Well bore and other fields.



Bit Dia.(mm)

Qty.× Button Dia.(mm)

Qty.Flushing holes








4 1/2''








Feature Advantage


1. Price commitment: in order to ensure the high reliability of products, raw material selection are using grapefruit brand products; under the same competitive conditions, and not to reduce product technical performance on the basis of sincerity at a favorable price to customers.

2. Quality commitment: product manufacturing and testing have quality records and inspection data; the performance of the product can withstand customer inspection.

3. Customer service: in order to create Super Diamond brand, enhance the visibility of enterprises,establish corporate image, we serve customers with the principle of "preferential prices, good service, reliable product quality" principle.



The appearance of the picture is different from that of the actual product, and the actual product is the standard.

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