DTH Bits DHD COP SD QL MISSION NUMA Down The Hole Hammer For Longer Life Drilling
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DTH Bits DHD COP SD QL MISSION NUMA Down The Hole Hammer For Longer Life Drilling
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Basic Infomation
Place of Origin: China
Brand Name: ROSCHEN
Certification: ISO
Model Number: 1"~30"
High Light:

COP84 dth hammer bit


DHD380 dth hammers and bits


SD8 dth hammer

Payment & Shipping Terms
Packaging Details: Wooden box
Supply Ability: 1300 pcs
Usage: Coal, Ore, Water Well Drilling
Face Type: Flat, Convex, Concave
Name No.: Secoroc DTH Hammers
Specification: Down The Hole Hammer Drilling
Sizes: Halco DTH Hammer, Halco DTH Bits
Model: DHD, Cop, SD, Ql, Mission, Numa
Tools: Mincon DHT Hammer, Mincon DTH Bits
Series: Mission 40 DTH Bits
Type: Mission 50 DTH Bits
Item: Mission 60 DTH Bits
Series No: Mission 80 DTH Bits
Name: Mission 100 DTH Bits
Hammer: Quantum Leap DTH Hammer
Hammer No.: Atlas Copco DTH Hammers
Sales: DTH Hammer For Sales
Selling: DTH Button Bits For Sales
QL Bits: Quantum Leap DTH Button Bits
COP Series: Secoroc COP Series DTH Button Bits
Product Description

DTH Bits DHD COP SD QL MISSION NUMA Down The Hole Hammering For Longer Life Drilling


Bits for any rock condition

Whatever conditions you're dealing with, our drill bits make the job easier. They are fitted with our proprietary cemented carbide buttons, which are designed to drill further. The drill bit bodies are made from precision hardened nickel molybdenum steel, with a compound curve shape for faster and smoother cutting and easier removal of cuttings.

Our well-proven button bit designs are trusted by customers around the world. The bits in the new range have an optimized head length with maximized steel support for the cemented carbide buttons, deep face grooves for excellent flushing and an aggressive cutting structure.


DTH Hammers & Bits

ROSCHEN offers a comprehensive range of WORLD CLASS quality grade DTH bits in global market, which were use in all rock types and drilling conditions. Bit life and rate of penetration are the most important criteria in selecting the right bit for a particular application.

DTH bits are available in sizes from 2" to 36". Bits come in three different standard bit head/face designs (Convex, Flat Face, and Concave), and with a number of tungsten carbide insert options, to guarantee a DTH drill bit that can tackle any challenge and rock-face formation. Additional bit head designs and custom options are available depending upon manufacturer.


Explore the subcategories below, view our online catalogs, or contact your ROSCHEN representative to learn more about our complete DTH Bit product offering.

ROSCHEN DTH Bits Specifications
Hammer Size Bits diameter Shank ROSCHEN CODE
Metric Inch
1" 64mm-70mm 2 1/2"-2 3/4" BR1 ROS 11
2" 70mm-95mm 2 3/4"-3 3/4" MACH20/BR2 ROS 22
3" 90mm-102mm 3 1/2"-4" COP32/COP34/MACH303 ROS 32
M30/DHD3.5/BR3 ROS 34
4" 105mm-152mm 4 1/8"-6" COP44/DHD340/MACH44 ROS 42
SD4/M40/QL40 ROS 44
5" 133mm-165mm 5 1/4"-6 1/2" COP54/DHD350R/MACH50 ROS 52
SD5/M50/QL50/BR5 ROS 54
6" 152mm-254mm 4 1/8"-10" COP64/DHD360/SD6 ROS 62
M60/QL60/Bulroc BR6 ROS 64
8" 203mm-330mm 8"-13" COP84/DHD380/SD8 ROS 82
QL80/M80/M85 ROS 84
10" 254mm-380mm 10"-15" SD10 ROS 100
12" 305mm-508mm 12"-20" DHD1120/SD12 ROS 120
Notes: Any special size of DTH bits will be available by requests.
Metzke, Remet thread is available!

Shank can be available:

1) Diameter 64mm-70mm shank Bulroc BR1

2) Diameter 70mm-95mm shank Halco MACH20, Bulroc BR2

3) Diameter 90mm-102mm shank COP32, COP34, Halco MACH303, M30, DHD3.5, Bulroc BR3

4) Diameter 105mm-152mm shank COP44, DHD340, Halco MACH44, SD4, M40, QL40, Bulroc BR4

5) Diameter 135mm-165mm shank COP54, DHD350R, COP54, Halco MACH50, SD5, M50, QL50, Bulroc BR5

6) Diameter 152mm-254mm shank COP64, DHD360, SD6, M60, QL60, Bulroc BR6

7) Diameter 203mm-330mm shank COP84, DHD380, SD8, QL80

8) Diameter 254mm-380mm shank SD10, Numa100

9) Diameter 305mm-508mm shank DHD1120, SD12, N120, N125

10) Diameter 405mm-864mm shank SD15, SD18

11) VKP80, VKP95, CIR90, CIR100, CIR110, CIR150, CIR200...

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



1. Button bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations (between 200 MPa to 260 MPa compressive strength). Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture.

2. Recommended for eliminating hole deviation

3. Widely used drifting and tunneling

4. Bit face design is ideal for medium-hard to hard abrasive rock

Shank can be available:

  1. R25/R32 button bits: From 41mm to 115mm
  2. T38/R38 button bits: From 57mm to 89mm
  3. T45 button bits: From 70mm to 105mm
  4. T51 button bits: From 89mm to 127mm
  5. ST58 button bits: From 89mm to 127mm
  6. GT60 button bits: From 102mm to 152mm
  7. EL68 button bits: From 115mm to 152mm
  8. ST68 button bits: From 115mm to 152mm
  9. Buttons shape: Domed, spherical, parabolic (semi-ballistic), ballistic
  10. Face shape: Flat face, drop center, uni-face;
  11. Skirt type: Normal, retract, straight retract face


Terms & Conditions of Ordering:


Quality warranty:

Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.



Using ply-wooden cases and pallet for package to protect the products and avoid the damage during transportation. Also we can customize package according to your special requests.


Production time:

Generally need 15-25 days



By air, By Express or By sea according to your requests.


1. Methods of Payment:

T/T (Telegraphic Transfer) or Western Union or L/C at sight


2. Handling time for an order

Based on order quantity, normally it takes 20 days for production.

in 3 working days after receiving the advance payment


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 every order before shipping out.


5. After Services:

a. Our sales team will response for your question within 24 hours (Holidays Excluded)

b. Technical Support will be available in any time


6. Quality & Service:

A. There will be strict inspection and testing for every order before shipping out.

B. Our sales team and Technical Support will response for your question within 24 hours through skype: ROSCHEN.TOOL and WhatsApp/Wechat: +86-13764195009

C. Free replacement will provide once the failure confirmed caused or our product quality; Not satisfied with a refund.


For more information, please contact:







WeChat: +86-137 6419 5009 ; +86-135 8585 5390


WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390


Email: roschen@roschen.com ; roschen@roschen.net


Website: http://www.roschen.com ; http://www.roschen.net


http://www.roschen.cn ; http://www.roschendrill.com

http://www.roschenmining.com ; http://www.roschendrilling.com


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Get in touch with us
Tel : 13764195009
Fax : 86-021-54380177
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