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Mission DTH Bits Down The Hole drilling button bit for Water Well Drilling

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Mission DTH Bits Down The Hole drilling button bit for Water Well Drilling
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Model: Down The Hole Button Bits
Name: Mission DTH Bits, COP DTH Bits
Drilling: Down The Hole Drilling
Use: Water Well Drilling, Foundation Drilling
Materials: Carbon Steel And Tungsten Carbide Buttons
Usage: Atlas Copco DTH Button Bits
Type: DTH Hammer Button Bits
Machine: Crawler Drill Rig
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shank adapter


Mission down the hole Bits

Basic Infomation
Place of Origin: CHINA
Brand Name: ROSCHEN
Certification: ISO
Model Number: 2 Inch; 3 Inch; 4 Inch; 5 Inch; 6 Inch; 8 Inch; 10 Inch; 12 Inch
Payment & Shipping Terms
Packaging Details: Carton Box + Polywooden Box
Supply Ability: 10000 pcs
Product Description


Mission​ DTH Bits, Down The Hole drilling button bit for Water Well Drilling 


DTH bits, Down The Hole drilling bit, DTH button bits 

Roschen Down The Hole Hammer and Down The Hole Hammer bits quality can be replaced of by
Boart Longyear, atlas copco basis on the quality grade, and in the after sales service.

DTH bits, Down The Hole drilling bit, DTH button bits manufacturer and supplier, produced by Roschen Group Limited, these DTH hammer bits are used for mining, construction, water well, oil/gas drilling etc.

All products are compatible with many products manufactured by 
Longyear and Atlas ,Halco, Mincon etc, all our products are widely used in mining, tunneling, quarrying, construction, and civil engineering project. DTH Hammer, DTH Bit, DTH Drill Rig manufacturers and suppliers in China, offering HD55 Flat Face Bit, HD45 Flat Face Bit, HD 35 Flat Face Bit and so on. 

  1. DHD340A, DHD350R, DHD360, DHD380; 
  2. Cop32, Cop34, Cop44, Cop54, Cop64, Cop84; 
  3. Mission 40, Mission 50 , Mission 60, Mission80; 
  4. SD4, SD5, SD6, SD8; 
  5. TD40, QL50, QL60, QL80; 
  6. BR2, BR3. 


Size Product range
2" hammer: DHD2.5 CIR65
3" hammer: DHD3.5 CIR90/ CIR80/ CIR70
4" hammer: DHD340 / DHD340N / M40 CIR110
5" hammer: DHD350 / DHD350N / M50 CIR150
6" hammer: DHD360 / M60
8" hammer: DHD380 / M80
Place of Origin: CHINA,
Brand Name: ROSCHEN
Certification: ISO9001: 2008, API etc.
Model Number: SD4, DHD350, COP64, QL 50, Mission 80, SD12, DHD112, NUMA125
Payment & Shipping Terms:  
Minimum Order Quantity: 1 piece
Price: Different goods own different price
Packaging Details: Ply-wooden cases or cartons
Delivery Time: Within 15-35 days according to your order quantity
Payment Terms: T/T, L/C, Western Union or Paypal
Supply Ability: 100000 pcs per month
Other Names: DTH Bits, DTH Drill Bits,Boart Longyear
DTH Bits, DTH Button Bits, DTH Hammer Button Bits, DTH Button Drilling
Material: Carbon Steel And Tungsten Carbide Buttons
Application: Drilling, Quarrying, DTH Drilling, Water Well Drilling, Oil Drill, Construction, Foundation Drilling
Bit Diameter: 2 Inch; 3 Inch; 4 Inch; 5 Inch; 6 Inch; 8 Inch; 10 Inch; 12 Inch
Technology: Heat Treatment
Colour: Gold, Black, Red, Blue, Yellow

DTH Button Bits Specifications: 


DTH bits
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 ROS 84
10" 254mm-380mm 10"-15" SD10 ROS 100
12" 305mm-508mm 12"-20" DHD1120/SD12 ROS 120
Notes: Metzke, Remet thread is available!

DTH Hammer Specifications: 

DTH hammers Specifications
Hammer Size Bit Shank ROSCHEN Code Connection Thread Suitable bit Working pressure Air consumption
2" BR2 ROS 11 ROS 22 RD50 box ¢70-¢90mm 0.7-1.75Mpa 0.7Mpa 4.5m3/min
1.0Mpa 4m3/min
1.4Mpa 5m3/min
3" DHD3.5 ROS 32 API 2 3/8" Reg ¢90-¢110mm 1.0-1.5Mpa 1.0Mpa 4.5m3/min
M30 1.5Mpa 9m3/min
4" DHD340 ROS 34 API 2 3/8" Reg ¢110-¢135mm 1.0-2.5Mpa 1.0Mpa 6m3/min
SD4 1.8Mpa 10m3/min
M40 2.4Mpa 15m3/min
5" DHD350 ROS 52 ROS 54 API 2 3/8"Reg/API 3 1/2" Reg ¢135-¢155mm 1.0-2.5Mpa 1.0Mpa 9m3/min
SD5 1.8Mpa 15m3/min
M50 2.4Mpa 23m3/min
6" DHD360 ROS 62 ROS 64 API 3 1/2" Reg ¢155-¢190mm 1.0-2.5Mpa 1.0Mpa 10m3/min
SD6 1.8Mpa 20m3/min
M60 2.4Mpa 28.5m3/min
8" DHD380 ROS 82 ROS 84 API 4 1/2" Reg ¢195-¢254mm 1.0-2.5Mpa 1.0Mpa 15m3/min
QL80 1.8Mpa 26m3/min
SD8 2.4Mpa 34m3/min
10" SD10 ROS 100 API 6 5/8" Reg ¢254-¢311mm 1.0-2.5Mpa 1.0Mpa 22m3/min
Numa100 1.8Mpa 40m3/min
ROS 100 2.4Mpa 55m3/min
12" DHD1120 ROS 120 API 6 5/8" Reg ¢305-¢445mm 1.0-2.5Mpa 1.0Mpa 30m3/min
SD12 1.8Mpa 56m3/min
Numa120 2.4Mpa 78m3/min
Notes: Metzke, Remet thread is available!

Bit face shape selection:

1. Drop Center Bit
2. Concave Face
3. Convex Face
4. Double Gauge Face
5. Flat Face Bit

Carbide button shape selection:

1. Domed/Round Button
2. Parabolic/Semi-Ballistic Buttons
3. Ballistic Button
4. Sharp Button
5. Flat Button



For more information please contact:



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

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

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Contact Person : Bill, George, Michael
Tel : 13764195009
Fax : 86-021-54380177
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