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Mach 44 DTH Button Bits for Australia Mining Down The Hole Rock Drilling
Mach 44 DTH Button Bits for Australia Mining Down The Hole Rock Drilling
Mach 44 DTH Button Bits for Australia Mining Down The Hole Rock Drilling
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Basic Infomation
Place of Origin: China
Brand Name: ROSCHEN
Certification: API
Model Number: COP32/COP34/MACH303
High Light:

COP32 DTH Button Bits


COP34 dth hammers and bits


MACH303 DTH Bits

Payment & Shipping Terms
Packaging Details: Wooden Box
Model: Down The Hole Button Bits
Material: Carbon Steel
Carbide Insert: Hemi-Spherical(Round), Parabolic(Semi-Ballistic)
Type: Drill Bit
Usage: Well Drilling, Ore Mining
Machine Type: Drilling Tool
Tooling: Mach44 DTH Button Bit (4.5")
Bits: Companion Router Bits 5
Drilling: Drill Bit 5 32
Item No: Tapcon Drill Bits 5 32
Name: China DTH Button Bits
Origin: Button Bits - DTH Button Bits Manufacturer
Supplier: China DTH Bits Manufacturer
Use: China DTH Bit Down The Hole Bit Rock Drill
Factory: Down Hole Hammers & Bits
Plant: DTH Bits For 4inch Hammer
Halco Series: Halco DTH Button Bits
Product Description

Mach44 DTH Button Bit (4.5")

Mach 44 DTH Button Bits for Australia Mining Down The Hole Rock Drilling 

DTH Hammers & Bits

DTH 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.


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.


Bit Dia Face Guage Buttons Face Button Cone Button Flush Wt.
Inch mm design Outer dia x No's Inner dia x No's Holes kg.
4.5 115 Flat 14 x 8   13 x 6   2 9
4.5 115 Concave 14 x 8   13 x 4 13 x 2 2 9
4.5 115 Convex 14 x 8 13 x 4 13 x 3   2 9
5 127 Flat 14 x 8   13 x 7   2 14
5 127 Concave 14 x 8   13 x 5 13 x 2 2 14
5 127 Convex 14 x 8 13 x 4 13 x 3   2 14

Roschen Rock Tools has emerged as a prominent business enterprise involved into manufacturing, supplying and exporting of quality striven products which include Rock Drilling Tools, Button Bits, DTH Hammer, Rock Drilling & Mining Equipment and many more. The firm got established in the year 2010 as a Sole Proprietorship business concern and is located in Cherlapally, Hyderabad, Andhra Pradesh. The entire range is used in various industries for its effective and huge applicability. We aim at providing best quality product to our clients to ensure they face no issues while applying these products to their use. Our manufactured products are hugely cherished in market owing to their sturdy construction, reliable operations, longer functional life and corrosion resistance. Moreover, their simplicity in operation and low maintenance has made them very popular amongst clients. All these qualities certainly give us an edge over our competitors ensuring our popularity even further.


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!


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.


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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