2" Down The Hole 76mm 90mm Br2 DTH Button Drill Bits For Rock
Drilling
Product specifications:
| Type | Bit Dia(mm) | No Air Holes | Guage Buttons | Front Buttons | Weight(kgs) | Part No |
| Br2 Drill Bit | 76 | 2 | 6x12 | 5x10 | 3.6 | Br2-76 |
| 80 | 2 | 6x13 | 5x10 | 4 | Br2-80 |
| 90 | 2 | 6x13 | 6x13 | 4.2 | Br2-90 |
| Hammer Size | 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/M85 |
| 10" | 254mm-380mm | 10"-15" | SD10 |
| NUMA100 |
| 12" | 305mm-508mm | 12"-20" | DHD1120/SD12 |
| NUMA120/NUMA125 |
Product photos
Available series of DTH hammer:
1) high pressure
SD series hammer: SD 5, SD 6, SD 8 and SD 12 DTH Hammers.
QL series hammer: QL 50, QL 60, QL 80 DTH Hammers.
HD series hammers: DHD 3.5, DHD 340. DHD 350, DHD 360, DHD380 DTH
Hammers.
Mission series hammers: M30, M40, M50, M60, M80 DTH Hammers.
Cop series hammers: Cop 32/34, Cop 42/44, Cop 54/64 DTH Hammers.
2) low air pressure: BR1, BR2, CIR 70, CIR 90, J60, J80, J100,
J150, etc.
SOLLROC is a leading manufacturer of rock drilling tools, like
DTH hammers and bits, DTH drill pipes, RC hammers and bits,
tophammer button bits, coupling, cross bits, drill rods located in
Changsha, Hunan, China.
We have rich experience in this field of DTH hammers and bits for
20 years.
Owing to high quality, professional serivce and competitive price,
we have gotton good reputation from our customers all over the
world, such as France, Spain, Italy, South Africa, Australia, Iran,
Malaysia, etc.
