China Down The Hole M80-305mm DTH Button Bit for 8" Hammer, Find details about China Down The Hole DTH Drilling, Mission80 Down The Hole DTH Hammer Bits from Down The Hole M80-305mm DTH Button Bit for 8" Hammer
For 8" hammer DTH bits shank | Bit Dia. | No. Air Holes | Gauge Buttons | Front Buttons | Weight (Kg) | Part No. | |
mm | inch | ||||||
DHD380/COP84 | 195 | 7 11/16 | 3 | 9×φ18 | 9×φ16 | 32 | DHD380-195 |
203 | 8" | 2 | 9×φ18 | 10×φ18 | 41 | DHD380-203 | |
216 | 8 1/2" | 2 | 10×φ18 | 12×φ16 | 49 | DHD380-216 | |
254 | 10" | 3 | 11×φ18 | 17×φ16 | 71 | DHD380-254 | |
305 | 12" | 4 | 12×φ18 | 29×φ16 | 95 | DHD380-305 | |
SD8 | 195 | 7 11/16 | 3 | 9×φ18 | 9×φ16 | 32 | SD8-195 |
203 | 8" | 3 | 9×φ18 | 9×φ18 | 41 | SD8-203 | |
216 | 8 1/2" | 2 | 10×φ18 | 12×φ16 | 49 | SD8-216 | |
254 | 10" | 3 | 11×φ18 | 17×φ16 | 71 | SD8-254 | |
305 | 12" | 4 | 12×φ18 | 29×φ16 | 95 | SD8-305 | |
QL80 | 195 | 7 11/16 | 3 | 9×φ18 | 9×φ16 | 32 | QL80-195 |
203 | 8" | 3 | 9×φ18 | 9×φ18 | 41 | QL80-203 | |
216 | 8 1/2" | 2 | 10×φ18 | 12×φ16 | 49 | QL80-216 | |
254 | 10" | 3 | 11×φ18 | 17×φ16 | 71 | QL80-254 | |
305 | 12" | 4 | 12×φ18 | 29×φ16 | 95 | QL80-305 | |
Mission80 | 195 | 7 11/16 | 3 | 9×φ18 | 9×φ16 | 35 | M80-195 |
203 | 8" | 3 | 9×φ18 | 9×φ18 | 40 | M80-203 | |
216 | 8 1/2" | 2 | 10×φ18 | 12×φ16 | 54 | M80-216 | |
254 | 10" | 3 | 11×φ18 | 17×φ16 | 57 | M80-254 | |
305 | 12" | 4 | 12×φ18 | 29×φ16 | 77 | M80-305 |
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. |