Model | Design | O.D. of Pilot Bit (mm) | W.T.of Pilot Bit (Kg) | DTH Hammer | O.D.of Casing Tube (mm) | Max. Thickaness of Casing Tube (mm) | I.D. of Ring Bit (mm) | O.D of Ring Bit (mm) | Weight (Kg) |
P114WD35R-82 | A | 92 | 4.6 | DHD3.5 | 114.3 | 6 | 84 | 126 | 3.5 |
P127WD35R-93A | B | 105 | 5.5 | DHD3.5 | 127 | 6 | 95 | 146 | 5.05 |
P140WD4R-97A | B | 116.5 | 11.35 | COP44/DHD340 | 139.7 | 8 | 101 | 165 | 6.35 |
P140WD4R-115A | B | 128 | 13 | COP44/DHD340 | 139.7 | 8 | 116 | 167 | 4.6 |
P140TD40-115 | A | 128 | 16.2 | TD40 | 139.7 | 8 | 116 | 161 | 4.75 |
P146WD4R-110 | A | 124 | 15 | COP44/DHD340 | 146 | 8 | 112 | 165 | 5.5 |
P168WD5R-127A | B | 141 | 21 | COP54/DHD350 | 168.3 | 8 | 129 | 192 | 6.7 |
P168WD5R-140A | B | 155 | 22 | COP54/DHD350 | 168.3 | 8 | 143 | 200 | 7 |
P219WD6R-170A | B | 191 | 43 | COP64/DHD360 | 219.1 | 12.7 | 173 | 247 | 15.85 |
P219WD6R-190 | A | 203 | 44.6 | COP64/DHD360 | 219.1 | 12.7 | 192 | 243 | 11.45 |
P273WD8R-219 | A | 241 | 76 | COP84/DHD380 | 273 | 9.1 | 223.2 | 305 | 19.6 |
P273WD8R-240 | A | 254 | 79.3 | COP84/DHD380 | 273 | 9.1 | 242 | 303 | 18.35 |
P325WD8R-273A | B | 292 | 108 | COP84/DHD380 | 323.9 | 9.3 | 276.2 | 350 | 25.5 |
P324WD8R-282 | A | 298 | 110 | COP84/DHD380 | 323.9 | 9.3 | 282 | 353 | 24.5 |