China DHD1120 305mm, DHD1120 311mm, DHD1120 330mm, DHD1120 356mm, DHD1120 381mm DTH Bits for Numa DTH Hammer Rock Drilling, Find details about China DTH Drilling Solution Provider, Down The Hole Drill Bits from DHD1120 305mm, DHD1120 311mm, DHD1120 330mm, DHD1120 356mm, DHD1120 381mm DTH Bits for Numa DTH Hammer Rock Drilling
For 12" hammer DTH bits shank | Bit Dia. | No. Air Holes | Gauge Buttons | Front Buttons | Weight (Kg) | Part No. | |
mm | inch | ||||||
DHD1120 | 305 | 12" | 4 | 12×φ18 | 36×φ16 | 152 | DHD1120-305 |
311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 157 | DHD1120-311 | |
330 | 13" | 4 | 16×φ18 | 42×φ16 | 165 | DHD1120-330 | |
356 | 14" | 4 | 16×φ19 | 48×φ16 | 178 | DHD1120-356 | |
381 | 15" | 4 | 16×φ19 | 48×φ18 | 198 | DHD1120-381 | |
SD12 | 305 | 12" | 4 | 12×φ18 | 36×φ16 | 156 | SD12-305 |
311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 168 | SD12-311 | |
330 | 13" | 4 | 16×φ18 | 42×φ16 | 180 | SD12-330 | |
356 | 14" | 4 | 16×φ19 | 48×φ16 | 191 | SD12-356 | |
381 | 15" | 4 | 16×φ19 | 48×φ18 | 200 | SD12-381 | |
NUMA120 | 305 | 12" | 4 | 12×φ18 | 36×φ16 | 152 | NUMA120-305 |
311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 158 | NUMA120-311 | |
330 | 13" | 4 | 16×φ18 | 42×φ16 | 165 | NUMA120-330 | |
356 | 14" | 4 | 16×φ19 | 48×φ16 | 178 | NUMA120-356 | |
381 | 15" | 4 | 16×φ19 | 48×φ18 | 195 | NUMA120-381 | |
NUMA125 | 305 | 12" | 4 | 12×φ18 | 36×φ16 | 170 | NUMA125-305 |
311 | 12 1/4" | 4 | 12×φ18 | 36×φ16 | 173 | NUMA125-311 | |
330 | 13" | 4 | 16×φ18 | 42×φ16 | 182 | NUMA125-330 | |
356 | 14" | 4 | 16×φ19 | 48×φ16 | 191 | NUMA125-356 | |
381 | 15" | 4 | 16×φ19 | 48×φ18 | 200 | NUMA125-381 |
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. |