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Changsha Sollroc Engineering Equipments Co., Ltd

Good quality Down The Hole Hammer for sales
I received my hammers and bits, they looks amazing,.they are performing well after we use them, thanks very much.

—— John Lewis

I would recommend this company product 110% as in the past I have had a 100% good result from them.

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7" DTH Hammer Bits 178mm Cop64 DTH Bit Rock Drill Bits for Waterwell Drilling

China 7" DTH Hammer Bits 178mm Cop64 DTH Bit Rock Drill Bits for Waterwell Drilling supplier
7" DTH Hammer Bits 178mm Cop64 DTH Bit Rock Drill Bits for Waterwell Drilling supplier 7" DTH Hammer Bits 178mm Cop64 DTH Bit Rock Drill Bits for Waterwell Drilling supplier

Large Image :  7" DTH Hammer Bits 178mm Cop64 DTH Bit Rock Drill Bits for Waterwell Drilling

Product Details:

Place of Origin: China
Brand Name: SOLLROC
Certification: SGS
Model Number: Cop64 dth bits

Payment & Shipping Terms:

Minimum Order Quantity: 1 set
Packaging Details: carton + ply wooden case + pallet for seaworthy or airworthy
Delivery Time: 3-4 weeks
Supply Ability: 2000 sets per month
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Detailed Product Description
Product Name: Cop64 Dth Drill Bits Color: Black Or Optional
Air Pressure: 10-25 Bar Applications: Water Well Drilling, Mining, Rock Drilling
Face Shape: Flat, Convex, Concave Diameter: 156mm,165mm,178mm,191mm,203mm
Connection Thread: API 2 3/8" Reg Size: 6",6 1/2",7",7 1/2",8"

7" DTH Hammer Bits 178mm Cop64 DTH Bit Rock Drill Bits for Waterwell Drilling



Different face style makes DTH bits suitable for various rock conditions.

Flat face: This is an universal design, especially for hard and abrasive rock formation. So typically, flat face with hemi-spherical buttons design is the most popular choice.


Convex face: A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.


Concave face: Medium hard to hard rock formations which is less abrasive and fractured. Especially for deep hole drilling, excellent control over hole deviation.


DGR face: A special design for hard or very hard rock conditions, double gauge row buttons provide very excellent ware-resistance and very longer life time. It is usually used for some bigger diameter DTH bits.
Besides, we are manufacturing the DTH bits with various shanks so they can be compatible with different DTH hammers.


Product specifications: Cop64 DTH bits




Bit Dia.(mm)


Qty.× Button Dia.(mm)


Qty.Air Holes








152 8×16 4×16+4×14 2 23.2
165 8×18 4×18+5×16 2 24.0
172 8×18 4×18+4×16 2 25.1
178 9×18 5×18+5×16 3 26.0
185 8×19 5×19+5×16 2 26.5
190 10×18 5×16+5×16 2 29.2
195 10×18 5×18+5×16 2 29.9
204 10×18 6×18+7×16 2 32.4


Bit size Shank type Recommended DTH bits diameter
3.5”/3” DTH hammer bits COP34, DHD3.5, MISSION30, BR3 shank 90mm~ 105mm
4” DTH hammer bits DHD340, QL40, MISSION40, SD4 shank 110mm~ 130mm
5” DTH hammer bits DHD350, QL50, MISSION50, SD5 shank 134mm~ 152mm
6” DTH hammer bits DHD360, QL60, MISSION60, SD6 shank 152mm~ 203mm
8” DTH hammer bits DHD380, QL80, MISSION80, SD8 shank 203mm~ 305mm
12” DTH hammer bits DHD112, SD12 and QL120 shank. Available upon to customers’ request


We can also provide related products DTH hammers, ODEX system, symmetrix systems, slide block drilling systems, etc and DTH drilling pipes for various thread API REG, API IF, BECO, etc
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



Product photos

7" DTH Hammer Bits 178mm Cop64 DTH Bit Rock Drill Bits for Waterwell Drilling


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Contact Details
Changsha Sollroc Engineering Equipments Co., Ltd

Contact Person: Amanda Yong

Tel: +8613637419898

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