China DTH Bit Down The Hole Bit Rock Drill Button Bit, Find details about China DTH Bit, DTH Bits from DTH Bit Down The Hole Bit Rock Drill Button Bit
Hammer inch | Bits diameter | Shank | |
Metric | Inch | ||
1" | 64mm-70mm | 2 1/2"-2 3/4" | BR1 |
2" | 70mm-95mm | 2 3/4"-3 3/4" | MACH20/BR2 |
3" | 90mm-102mm | 3 1/2"-4" | COP32/COP34/MACH303 M30/DHD3.5/BR3 |
4" | 105mm-152mm | 4 1/8"-6" | COP44/DHD340/MACH44 SD4/M40/QL40 |
5" | 133mm-165mm | 5 1/4"-6 1/2" | COP54/DHD350R/MACH50 SD5/M50/QL50/BR5 |
6" | 152mm-254mm | 4 1/8"-10" | COP64/DHD360/SD6 M60/QL60/Bulroc BR6 |
8" | 203mm-330mm | 8"-13" | COP84/DHD380/SD8 QL80/M80 |
10" | 254mm-380mm | 10"-15" | SD10 NUMA100 |
12" | 305mm-508mm | 12"-20" | DHD1120/SD12 NUMA120/NUMA125 |