DTH Button Bits Mission 40 140mm Down The Hole Drilling In Australia Mining For Well Drilling
1 pcs
DTH Button Bits Mission 40 140mm Down The Hole Drilling In Australia Mining For Well Drilling
Features Gallery Product Description Request A Quote
Basic Infomation
Place of Origin: China
Brand Name: ROSCHEN
Certification: ISO
Model Number: 3"~12"
High Light:

SD4 dth hammers and bits


Mission 40 DTH Button Bits


QL40 DTH Bits

Payment & Shipping Terms
Packaging Details: Wooden box
Supply Ability: 1500 Per month
Diameter: 76mm-550mm.
Shank: DHD3.5, DHD340A,DHD350R, DHD360,DHD380, QL40,QL50,QL80,COP44,COP54,COP64,COP84,SD4,SD5,SD6,SD8, Mission 40, Mission50,Mission60, Mission80, Mach 33, Mach 44,BR2, BR3,BR4,Mach 50, SD10, SD12,DHD112, Numa 120, Numa 125.
Materials: Atlas Copco Secoroc DTH Hammer
Type: Down The Hole Hammer, DTH Hammer
Drilling: DTH Hammer Drilling, DTH Hammer Drilling Technology
Name: DTH Hammer Bits
Relatives: DTH Hammers And Bits
Drills: Down Hole Hammer Drill
Supplier: Dth Hammer Manufacturer
Equipment: DTH Drilling Rig
Applications: Used For Mining, Construction, Geothermal, And Rotary Drilling Industries
Product Description

DTH Button Bits Mission 40 140mm Down The Hole In Australia Mining For Well Drilling

DTH Button Bits

Diameter: 57mm-660mm

Application: Well drilling, Ore ming, Coal mining

Shank of Bit: DHD,COP,Mission,SD,QL,TD,BR

Basic Bit Designs: Convex, Flat front, Speed Bit, Concave, Rocket Bit


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: DHD3.5, DHD340A, DHD350R, DHD360, DHD380, QL40, QL50, QL80, COP44, COP54, COP64, COP84, SD4, SD5, SD6, SD8, Mission 40, Mission50, Mission60, Mission80, Mach 33, Mach 44, BR2, BR3, BR4, Mach 50, SD10, SD12, DHD112, Numa 120, Numa 125.
Diameter: 76mm-550mm.



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


  1. Bit Size: 3.5"/3", DTH Hammer Bits Shank Types: COP34, DHD3.5, MISSION30 BR3, Recommended Bits: 90mm-105mm
  2. Bit Size: 4" DTH Hammer Bits, Shank Types: DHD340, QL40, MISSION40, SD4, Recommended Bits: 110mm-130mm.
  3. Bit Size: 5" DTH Hammer Bits, Shank Types: DHD350, QL50, MISSION50, SD5, Recommended Bits: 134mm-152mm.
  4. Bit Size: 6" DTH Hammer Bits, Shank Types: DHD360, QL60, MISSION60, SD6, Recommended Bits: 152mm-203mm.
  5. Bit Size: 8" DTH Hammer Bits, Shank Types: DHD380, QL80 MISSION80, SD8, Recommended Bits: 203mm-305mm.
  6. Bit Size: 12" DTH Hammer Bits, Shank Types: DHD112, SD12, QL120, Customer Tailor-made.

DTH Drill Pipes:

  1. Diameter: 60mm, 76mm, 89mm, 102mm, 114mm, 140mm, 146mm, 168mm,
  2. Thread Sizes: 2 3/8" API, 2 7/8" API, 3 1/2" API, 4 1/2" API.
  3. Wall Thickness: 5.5mm, 6.5mm, 8.5mm, 10mm, 11mm, 19mm, etc.
  4. Length: 1000mm- 10670mm
  5. P.S: All DTH drill pipes are friction welded.

The information about dth drill bit you may like to know before order:
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.


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


Recommended Products
Get in touch with us
Contact Person : Mr. Bill, George, Michael
Tel : 13764195009
Fax : 86-021-54380177
Characters Remaining(20/3000)