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Core, Drill Connect - Working with SGN

The Project

Mains & Service Replacement through a Keyhole

To develop a self-contained vehicle for the easy transportation of equipment to carry out mains and service replacement activities within a Ø 600 mm keyhole, safely and efficiently with minimal disruption to customers.​

Project Licensees:  Scottish Gas Networks
Project Duration: 2 Years 8 Months
Project Start Date: July 2014
Project End Date:March 2017
Project Budget: Undisclosed

Vehicle to include:

  • TT Coring Unit – for removing a re-usable carriageway core 600mm in diameter
  • Specially developed Long Handle Tooling - to operate safely on connections within the  Keyhole
  • Lockable Tool Storage
  • Grundopit Keyhole– for steerable keyhole pipe installations
  •  PPE - Personal Protection Equipment on-board
  • Fire Extinguisher
  • Portable Lighting Unit 
  • Built-in Hand Wash Unit
  • Lifting crane
  • Onboard compressor and power supply system
  • Safety overhead cable monitoring system


  •  All equipment is housed together on one vehicle
  •  Installations can be carried out by one team from start to finish
  •  Time Saving
  •  Reduced Carbon Footprint due to reduced number of vehicles required
  •  Improved Health & Safety
  • Minimal impact on the Environment
  • Reduced Risk to workforce and the public
  • Reduced running times and costs
  • Improved customer experience



Further information



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