Super Down The Hole Hammer DTH Drill Bits for water well drilling
Bit Face Shape Selection:
1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
2. Concave Face
The all-around application bit face specifically for medium hard and homogeneous rock formations.
Good hole deviation control and good flushing capacity.
3. Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce theload and wear on the gauge buttons, but poor hole deviation control.
4. Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.
6 inch shank Down The Hole Bits:
| Shank Type: | DHD360, COP64, SD6, QL60, M60 DTH Hammer Bit |
| Bit Dia.: | 152mm,155mm,159mm,165mm,172mm,178mm,190mm,203mm |
| Face: | Flat Face, Concave Face, Convex Face |
| Tungsten Carbide: | Ballistic Buttons, or Spherical Buttons |
| Color: | Green or Based on Customer requirements |
| 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" | 105~152mm | 4 1/8"~6" | COP44/DHD340/MACH44 SD4/M40/QL40 |
| 5" | 133~165mm | 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 |
DTH hammer bits/DTH биты молоток/DTH martilyo bits/DTH บิตค้อน/DTH martillo de bits
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water well hammer drilling bits Down The Hole Hammer DTH Bits air hammer drill bits Images
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