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Coal Mining Drilling DTH Hammer Bits With 209 Mm Shank Length

Hunan New Diamond Construction Machinery Co., Ltd.
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Coal Mining Drilling DTH Hammer Bits With 209 Mm Shank Length

Brand Name : New Diamond

Model Number : DHD340 ND45 ND45a 115mm

Certification : ISO9001:2008

Place of Origin : Hunan, China

MOQ : 1pcs

Price : negotiable

Payment Terms : T/T, Western Union

Supply Ability : 100000pcs/month

Delivery Time : 2-4weeks

Packaging Details : Wooden case

Type : DTH Hammer Rock Drill Bit

Machine type : Drilling Tool,Drilling Equipment,Downhole Tools

Material : Carbide,alloy steel

Processing type : Forging

Use : BoreWell Drilling,Coal Mining,Mining and Drilling,Quarrying

Color : Blue,other color available,golden or Request

Product name : Dth bits DHD340 ND45 ND45a 115mm

Application : Rock Drilling,Water well drilling and rock drilling,underground mining,quarries

Advantage : High Wear Resistant,Widely used hard rocks and have good penetration,High-efficiency,high performance and factory price,Direct Manufacturer

Usage : Hole Drilling,Mining,Geothermal Drilling,Water Well Drilling

Button shape : Spherical/Ballistic/parabolic/sharp/falt bottons

Advantages : high quality and factory prices

Formation : piston and drive chuck and extenrnal cylinder

Shank Length : 209 mm

weight : 8.22 kg

Head Diam : 115 mm

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Mining Drilling Hammer Drills DHD340 ND45 ND45a 115mm Dth Hammer Bit


DHD seriesHead shape



Number of ventsButton qty.pcs*dia.mmweight (KG)
Button TypeGaugeFront
DHD 340(ND45) dth hammer drill bitConcave Face1082Spherical7XØ166XØ147.85
Flat Face1152Spherical7XØ166XØ148.22
Concave Face1272Spherical8XØ164XØ14+3XØ138.88
Concave Face1302Spherical8XØ164XØ14+3XØ139.15
WE can design and manufacture according to customers requirement of the bit diameter,the NO.of air holes,carbide buttons and the face shape.

1. Button Shape: Spherical,Semi-ballistic,Ballistic.
2. Durable performance, wear resistant and withstanding large impacting force.
3. Long life span.
5. Fast delivery time.

Feature Advantage

1. Long life span: the wear-resist of tungsten carbides is 10-20 times higher compared with other similar materials, which greatly extends the life of the carbide bits;
2. High drilling efficiency: the high grade hardness of the carbides can always stay sharp, which could increase the drilling speeds too;
3. Stable drilling speed: the bit is scraped and cut to break the rock.
4. Good performance: strong wear resistance, good diameter protection which will make the cutting teeth more efficiently.

5.Lower cost.


The New Diamond manufactured DHD340 ND45 ND45a 115mm is widely used in geological exploration, coal mine, water well drilling, borewell drilling, highway, railway, bridge, construction, mining, quarry, Civil engineering, ore mining,Dimension stone industry and so on.

Hunan New Diamond offers top quality DTH hammers and bits which have been tested in the hardest rock formation. Our bits use quality hardened steel alloy for the bit body and premium quality tungsten carbide buttons. With superb performance and long life span. Our bits won high reputation among our customers.

About Us

Hunan New Diamond Construction Machinery Co.,Ltd is a professional and modern high-tech enterprise which engaged in researching and manufacturing rock drill and pneumatic tools. The team has specialized in drilling and pneumatic tools manufacturing since 1998, and until 2020 the company has nearly 700 employees and covers 110000m2 area in total. It mainly designs and manufactures DTH hammers, various drilling bits, drill pipes and all kinds o f other drilling tools. The products are widely applied to earth-moving engineering, mining exploitation, oil drilling, water well drill,pile foundation engineering and etc.

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Drilling DTH Hammer Bits


Coal Mining DTH Hammer Bits


DTH Hammer Bits 209 Mm

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