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Concave Face 8 Inch Size DTH Drill Bits For Shank SD8 , Diameter 203mm

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Address: No55. Jiucaiyuan road, Furong District, Changsha, Hunan,China

Contact name:Ling Bo

Changsha Sollroc Engineering Equipments Co., Ltd

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Concave Face 8 Inch Size DTH Drill Bits For Shank SD8 , Diameter 203mm

Country/Region china
City & Province changsha hunan
Categories Tool Parts

Product Details


Product description


DTH Drill Bits are produced from premium quality alloy steel for increased durability and wear characteristics. Specific heat treatment standards and special “stress relief” processes ensure consistent performance. DTH hammer bits are designed for maximum performance and hole cleaning ability and high penetration rate. Sollroc can supply DTH hammers and bit from 2"-18" for shank type DHD, SD, QL, Mission, Numa, etc.


SD8 DTH bit

Bit diameter

Flushing holes

No.*Button Dia.


No.*Button Dia.





mminchGauge ButtonsFront Buttons
2007 7/8”2*Ф3010*Ф188*Ф18+6*Ф1646
2168 1/2”2*Ф3010*Ф188*Ф18+6*Ф1653
2198 5/8”2*Ф3010*Ф188*Ф18+6*Ф1654
2228 3/4”2*Ф3010*Ф188*Ф18+6*Ф1655
2258 7/8”2*Ф3010*Ф188*Ф18+6*Ф1656
2359 1/4”2*Ф3012*Ф1820*Ф1658
2419 1/2”2*Ф3012*Ф1820*Ф1658
27010 5/8”2*Ф3012*Ф198*Ф18+19*Ф1662






Strict quality controlling
Selected high quality special steels and carbide
Produced by CNC machines
Simple and reasonable design, Low problem rate
Low air consumption, smooth drilling, Maximum impact power, High penetration rate




Product application


At present, DTH drilling tool is widely used in underground mining, quarries, hydraulic and Hydro-Power Engineering, water well drilling, Mineral exploration, anchoring hole drilling, geothermal engineering, Subway excavation, another civil engineering.






It has the advantage of high flatness, smooth hole wall, high rigid of drill rod and hammer, independent of high axial thrust, no limit of drilling depth, low cost of devices and easiness to maintain. At the drilling hole of dia.105mm-dia.254mm, a plenty of the DTH drilling tools are used.




Company information


Sollroc , with more 10 years of experience ,is one of the professional manufacturer and supplier of high performance rock drilling tools like: DTH hammers and bits, RC hammers and bits, DTH drill rods and top hammer drilling tools. Our tools are widely used in different drilling applications including mining, quarrying, water well drilling, geotechnical industries and etc.


Sollroc is specialized in designing, manufacturing and developing equipments and accessories for standard models as well as the special needs of clients and provides them with the best suggestions and solutions. We practice strict and stringent quality control during manufacturing and adhered to recognized and approved quality control systems. Each of our products follows the quality requirements and procedures to ensure finished products are durable and superior up to standard.

We are dedicated to offering our customers only premium quality products and services to enable them to achieve the highest possible productivity for their business and projects. If you are looking for the best, fastest and most productive drilling tools in the world, Sollroc should be your best choice and preference.




Detailed pictures



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