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Underground Piercing Tools
For Sale or Rental
Below are the TT Technologies "Missiles".

Horizontal Boring with Grundomat®

Grundomat pneumatic piercing tools have been providing accurate horizontal bores beneath roads, railways, and landscaping across North America and around the world for nearly 45 years. Water, gas, sewer and electrical industries have all benefited from this work horse of trenchless technology. Minimal operating space is required and the horizontal boring tool serves as a complement, and in many situations an economical alternative to, larger, more expensive directional drilling equipment.

Trenchless Technology Benefits
  • The Grundomat design provides greater target accuracy than traditional pneumatic boring tools

  • In just one simple step, the moling tool performs a bore and pulls in pipe behind it

  • Minimal disruption to traffic, buildings, and other utilities

  • Avoids sizable surface damage and costly restoration required for old trenching methods

  • Accelerated project completion timeline

  • Easy to set up and operate

  • Minimal crew size


Grundomat Graphic
The Grundomat® Basic Package:

For cost savings and ordering convenience, TT Technologies offers all models of the Grundomat piercing tool in a basic package. The basic package includes practical items to be sure that, upon delivery of the tool, you’re ready to bore. All components are selected to provide a perfect match to each Grundomat model.


  • Grundomat Boring Tool

  • 50′ Air Supply Hose

  • In-line Lubricator

  • Magnetic Starting Level

  • Operators & Parts Manual

  • 1 Gallon Grundo-Oil® Tool Lubricant


Grundomat Basic Package
Grundomat Sizes
Grundomat Spec Sheet



Call for Sale or Rental Pricing: 909-208-3998

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