China Br3 Down The Hole DTH Hammer Bits 92mm for Hard Rock Formation DTH Drilling, Find details about China Br3 Down The Hole DTH Bits, Down The Hole (DTH) Hammer Bits from Br3 Down The Hole DTH Hammer Bits 92mm for Hard Rock Formation DTH Drilling
Type | Bit Dia(mm) | No Air Holes | Guage Buttons | Front Buttons | Weight(kgs) | Part No |
Br3 Drill Bit | 85 | 2 | 6x13 | 4x12 | 3.8 | Br3-85 |
90 | 2 | 6x14 | 4x12 | 4 | Br3-90 | |
95 | 2 | 6x14 | 5x12 | 4.3 | Br3-95 | |
100 | 2 | 8x13 | 6x13 | 4.8 | Br3-100 | |
105 | 2 | 8x13 | 6x13 | 5.2 | Br3-105 |
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. |