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For small-hole sizes, ProDrill produces the ODEX Eccentric Overburden Drilling System, rock drill bits starting with the ODEX90 to suit 114mm O.D. casings. This two-piece system comprises the shank bit holder and the eccentric pilot bit that is secured in the bit holder by a double interlocking pin. This is easily removed to allow for bit sharpening or replacement. ProDrill ODEX overburden drilling systems are widely used in a variety of applications from well drilling and mini pilling to rock anchoring and site investigation.
Application Range
It is suitable for drilling water wells, geothermal wells, short micro piles ,medium mini-type grouting hole of building, dam and harbor project.
Technical Data
Type | Casing Tube | Reamed Hole Dia(mm) | Casing Shoe Inner Dia(mm) | DTH Hammer type | Drill Pipe(mm) | |
OD(mm) | ID(mm) | |||||
ODEX80-P | 108 | 93-99 | 118 | 87 | COP34/DHD3.5 | 76 |
ODEX90-P | 114 | 102-108 | 123 | 93 | COP34/DHD3.5 | 76 |
ODEX100-P | 127 | 114-117 | 136 | 102 | COP34/DHD3.5 | 76 |
ODEX115-P | 140 | 124-128 | 152 | 115 | COP44/DHD340/SD4/QL40 | 76 |
ODEX120-P | 146 | 130-134 | 154 | 121 | COP54/DHD350/SD5/QL50 | 76 |
ODEX140-P | 168 | 148-156 | 185 | 140 | COP54/DHD350/SD5/QL50 | 89 |
ODEX150-P | 178 | 158-166 | 195 | 150 | COP54/DHD350/SD5/QL50 | 89 |
ODEX165-P | 194 | 174-182 | 211 | 166 | COP64/DHD360/SD6/QL60 | 114 |
ODEX190-P | 219 | 199-207 | 237 | 193 | COP64/DHD360/SD6/QL60 | 114 |
ODEX210-P | 245 | 225-233 | 260 | 210 | COP84/DHD380/SD8/QL80 | 114 |
ODEX240-P | 273 | 253-257 | 308 | 241 | COP84/DHD380/SD8/QL80 | 114 |
ODEX280-P | 325 | 305-309 | 378 | 281 | DHD112/DHD380 | 114 |