Tungsten Carbide Down The Hole Drilling Button Bits With Less Blockages
Tungsten Carbide Down The Hole Drilling Button Bits With Less Blockages
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Basic Infomation
Place of Origin: China
Brand Name: ROSCHEN
Certification: ISO
Model Number: 2 - 36"
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dth button bits


dth hammers and bits


down the hole bits

Payment & Shipping Terms
Packaging Details: Poly Wooden box
Supply Ability: 100000 pcs
Name: Down The Hole Drilling Button Bits
Advantage: Less Blockages
Hammer: Rev Drill Down Hole Hammer
Material: Tungsten Carbide
Hammer Bits: Down The Hole Hammer Bits
Brand: ROSCHEN Dth Hammers
Use: Down The Hole Drilling Method
Origin: China Down The Hole DTH Hammer Bits
Product Description


Tungsten Carbide Down The Hole Drilling Button Bits With Less Blockages


DTH Hammer Bits key face types:

1. Flat Faced Hammer Bit
These hammer bits are excellent for drilling in medium to hard formations. These hammer bits maintain average hole straightness but have an excellent penetration rate.

2. Medium to hard ground formations are no problem for this DTH Hammer Bit. The DTH bit keeps average hole straightness but drills at an excellent speed.


3.These DTH Hammer Bits are great for drilling through medium to hard formations. Drop Center Hammer Bits have excellent hole straightness with an average drilling rate of penetration.


4. Concave Type Hammer Bit

Concave Hammer bits are ideal for drilling through medium to hard formations. These DTH hammer bits are known to keep an extremely straight hole with an average rate of penetration.

Down The Hole Drilling Button Bits Parameters


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
Metzke, Remet thread is available!
Any special size of DTH bits will be available by requests.



Down The Hole Drilling Button Bits Advantage

1. High grade tungsten carbide inserts

2. Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment


Tungsten Carbide Down The Hole Drilling Button Bits With Less Blockages 0

Down The Hole Drilling Button Bits Details


1. Roschen Hammer Bits or DTH Button Bits range in size from 2" hole diameter upwards (50.1mm) to 36” (914.4mm). Roschen always supply stocks DTH Hammers and DTH Button bits for all major DTH Hammer brands and shanks.


2. When percussion or hammer drilling your choice of hammer bit is just as important as your choice of down hole hammer. DTH stands for “down the hole”. When hammer drilling, the hammer bit gets its energy from repetitive striking of a pneumatic down hole hammers piston. This hammering with slow rotation drives the hammer bit gradually through ground formations. DTH hammer bits are most commonly used in percussion rotary air blast drilling, mining blast holes, and mineral exploration and water well drilling industries.


3. The cutting interface of the DTH hammer bits are loaded with high quality tungsten carbide, which is an extremely hard material. Since hammer bits work with air pressure delivered to the down hole hammer, it is important to use the recommended pressure provided when hammer drilling. Down hole hammer bits come with a wide variety of carbide styles. The sharper the point, the softer formation it is used for. The different styles of carbides on the hammer face include dome, cone and ballistic tungsten carbide inserts which are press fit into the DTH bit.


4. Roschen can open up the flushing holes to provide hammer bits that can be used in reverse circulation drilling. Customized Hammer Bits, Flat Faced Hammer Bits, Convex Hammer Bits, Drop Center Hammer Bits, Concave Hammer Bits, and all kinds of exceptional custom drilling tools are offered at Roschen group limited.



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.


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