Down The Hole Bit DTH Drilling Bit
Down-the-hole (DTH) hammer bits are used with Down-the-hole hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill hammer bits are designed with a splined drive for rotating the bit in the ground. Drill bits are available in different sizes and different styles so they can drill a wide range of hole sizes. Our variety of Down the Hole (DTH) bits is manufactured using high quality materials to provide you with a fine balance between penetration capability and bit life. We offer a comprehensive range of standard and made to order drill bits on an extensive selection of shanks with a wide variety of head designs to suit every project.
| Available Option Teeth Shape |
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| Available Option Face Shape |
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What DTH drill bit can DrillMore provide?
DrillMore supply DTH Drill Bits are available in a wide range of sizes and with a number of custom design features for optimum performance in a rock formation, which are designed to match all conceivable applications for water well industries, mining and construction.
Bit service life and penetration rate are the most important criteria in selecting the right bit for aparticular application.In most cases the focus is on productivity, so the bits of fast cuttings removal features are preferable to ensure the buttons are cutting clean, with the minimum of re-crushing.
DTH bit can subiect 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 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 |
14 inch high Air pressure DTH bits Shank:DRILLMORE 145 | 381~470 |
18 inch high Air pressure DTH bits Shank: DRILLMORE 185 | 445~660 |
20 inch high Air pressure DTH bits Shank: DRILLMORE 205 | 495~711 |
24 inch high Air pressure DTH bits Shank: DRILLMORE 245 | 711~990 |
32 inch high Air pressure DTH bits Shank: DRILLMORE 325 | 720~1118 |
All the models can be designed according to your requests!
How to place an order?
Bit diameter.
Shank type.
Face shape and teeth shape.
DrillMore Rock Tools
DrillMore is dedicated to the success of our customers by suppling drilling bits to each application. We offers our customers in the drilling industry many options, if you do not find the bit you are looking for please contact our sales team at following to find the correct bit for your application.
Head Office: XINHUAXI ROAD 999, LUSONG DISTRICT, ZHUZHOU HUNAN CHINA
Telephone: +86 199 7332 5015
WhatsApp: https://wa.me/8619973325015
Email: [email protected]
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