COP32 Shank 90mm Carbon Steel DTH Drill Bit For Mining And Construction Drilling
DTH bit is the tool cutting rocks, and subject to severe stress from the striking piston as well as from the abrasive cuttings passing the bit at high velocity. When selecting the right bit for optimum performance you have to balance penetration against bit life. On occasion you can successfully sacrifice bit life for penetration, remember the rule of thumb that states that a 10% increase in penetration covers at least a 20% loss in bit life.
Specification
| Specification of dth hammer button bits: | Diameter: (mm) |
|
1-2 inch low air pressure DTH bits Shank: BR1, BR2, DHD2.5 |
57/64/70/76/80/82/90 |
|
3 inch high Air pressure DHT bits Shank: BR3,DHD3.5,COP34,COP32,QL30,M30,IR3.5 |
85 / 90 / 95 / 100 / 105/110 |
|
4 inch high Air pressure DHT bits Shank:DHD340,COP44,M40,SD4,QL40 |
105 / 110 / 115 / 120 / 127/130 |
|
5 inch high Air pressure DHT bits Shank:DHD350,COP54,M50,SD5,QL50 |
133 / 140 / 146 / 152 / 165 |
|
6 inch high Air pressure DHT bits Shank:DHD360,M60,SD6,QL60,COP64 |
152 / 165 / 178 / 190 / 203 |
|
8 inch high Air pressure DHT bits Shank:DHD380,COP84,M80,SD8,QL80 |
195 / 203 / 216 / 254 / 305 |
|
10 inch high Air pressure DTH bits Shank:SD10, NUMA100 |
254/270/279/295/305 |
|
12 inch high Air pressure DTH bits Shank:SD12,DHD1120,NUMA120,NUMA125 |
305/330/343/356/368/381 |
|
15 inch high Air pressure DTH bits Shank: DHD1150, SD15,NUMA125 |
381/391/435/457/483/503 |
|
Over 20 inch high Air Pressure DTH bits Shank: NUMA180,NUMA240, |
483/508/560/578/610/660 |
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