Down the Hole Drill Bits

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Down the Hole Drill Bits 

 

Down the Hole Drill Bits

 

Down the Hole Drill Bits

 

A hammer is only as good as the bit it uses – and no bit is better than Secoroc DTH bits.  The economics of drilling often comes down to balancing penetration against bit life.  Roschen Secoroc bits improve drilling economy regardless of what hammer is used or whether optimized penetration rate or bit life is preferred.  

 

Roschen can help you match the right face design and button shape to your drilling application.

 

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
NUMA100
12" 305mm-508mm 12"-20" DHD1120/SD12 ROS 120
NUMA120/NUMA125
Notes: 
Metzke, Remet thread is available!
Any special size of DTH bits will be available by requests.
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