Symmetric Overburden Drilling System

Our Manufacturers:

31 Years in the Drilling Manufacturing and Consumables Business
Compete with Famous Brands in 40 Countries Around the World
Internationally recognized quality (ISO:9001) and environmental standards (ISO:14001)


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Model No. of Wings Bit Diameter (mm) Casing Size (mm) Applicable Hammer
Expanded Retracted I.D. O.D. Wall
TREX 115 2 155 113 120 140 10.0 ACE40
TREX 140 2 185 141 155.2 168.3 6.6 ACE50
TREX 165 2 212 162 178 194 8.0 ACE60
TREX 190 3 239 188 203 219 8.0 ACE60, ACE80
TREX 215 3 264 213 225.9 244.4 9.3 ACE80
TREX 240 3 295 235 254.6 273 9.2 ACE80
TREX 250 3 317 248 270 300 15.0 TD100
TREX 280 3 341 268 304.8 323.9 9.6 TD100
TREX 315 3 379 319 335.6 355.6 10.0 ACE120
TREX 365 3 425 356 387.4 406.4 9.5 ACE120
TREX 410 3 480 408 425 457 16.0 TD320
TREX 460 4 530 455 482.6 508 12.7 ACE380, TD450
TREX 510 4 586 511 533.4 558.8 12.7 TD450
TREX 560 4 634 558 584.2 609.6 12.7 TD450, TD550
TREX 610 4 682 605 635 660.4 12.7 TD550
TREX 660 4 733 656 685.8 711.2 12.7 TD550
TREX 710 4 784 707 736.6 762 12.7 TD550
TREX 745 4 835 730 781 813 16.0 TD550
TREX 810 4 886 809 838.2 863.6 12.7 TD700
TREX 830 4 945 831 889 914.4 12.7 TD700
TREX 950 4 1046 957 985 1020 17.5 TD800H

Other shank types or sizes are available upon customer's request