Machining service

Whatever your machining operations, such as flange surfacing, gasket seating, drilling, boring… our teams will bring you experience and a well done job!

First Bolting team carrying out an intervention on the machining site

Engineering, consultancy, and on-site machining

First Bolting provides you with a complete solution for your machining needs, from upstream engineering to on-site machining:

  • Project management
  • Unit shutdown management
  • Turning work
  • Milling work
  • Boring work
  • Grinding and grooving machines
  • Drilling and tapping
  • Cutting and chamfering

We only work with the best machines that are checked and tested by us before and after each operation.

Our experience in the nuclear and petrochemical industries makes us privileged partners at your side.

We can offer you a turnkey service “dismantling, inspection, machining, supply/assembly of seals and tightening” guaranteed ZERO leakage.

Our certifications: Mase, VCA, Atex, Nuclear, flange fitters.


Our tools

  • Resurfacers up to 4000mm
  • Boring machines
  • Portable tower
  • Magnetic drill

What for/For which industry

  • Nuclear
  • Petrochemicals
  • Cranes and construction machinery
  • Energy
  • Steelworks
  • Plastics
  • Shipyard
  • Industrial machinery
  • Mines and quarries

Contact us for any request.

Examples of machining operations on site