Symmetrix Overburden Casing Drilling System

Casing Tube OD(mm) Casing Tube ID(mm) Reamed Dia(mm) Casing Shoe ID(mm) Polit bit Dia(mm) Hammer Type 108 93-99 118 86 77 DHD3.5/QL30 114 102-104 127 91 82 DHD3.5/QL30 127 115-117 136 101 92 DHD3.5/QL30 140 124-128 152 117 105 DHD340/SD4/QL40/M40 146 130-134 154 117 105 DHD340/SD4/QL40/M40 168 148-156 185 140 125 DHD350/SD5/QL50/M50 178 158-166 195 150 140 DHD350/SD5/QL50/M50 183 163-171 193 154 144 DHD350/SD5/QL50/M50 194 174-182 211 166 150 DHD360/SD6/QL60/M60 219 199-207