Subcontract Machining Work

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Subcontract Machining Work

The Accuracy for subcontract machining work for CNC controlled deep hole boring machines, together with TBT gun drills, ensures that TBT UK Limited can provide the customer with precise hole position and quality in terms of both diametrical tolerance, surface finish and straightness.

Our subcontracting machining work includes:
Gun drilling / Deep Hole Boring BTA / STS System

  • Minimum Drill Diameter: 0.9mm
  • Maximum Drill Diameter: 150mm
  • Maximum Drill Depth: 4 metres
  • Maximum Workpiece Weight: 20 tons
  • Concentric & Asymetric (Block Type) Work
Subcontract Machining Work for deep hole boring.

Honing up to 400mm Diameter Bore x 3 Metre Deep

Vertical Honing for deep hole boring.

We now have a vertical Honing facility!

Honing for deep hole drilling.
  • Trials & Prototype Work
  • Faster Quotes
  • New BW 300 Table Machine
  • New 12,000sq ft Workshop
  • Just-in-time Delivery Demands

Deep Hole Boring
ø 200mm x 5 metres deep Deep hole boring machine.


  • Automobile
  • Aeronautical
  • Fire Arms
  • Hydraulics / Pneumatics
  • Petro-Chemical
  • Machine tool
  • Mould Tool
  • Medical
To name but a few ....
Mould Tool
Mould Tool.

BW 300 Multi Axis Table Machine
  • Gundrilling up to 25mm ø x 2 metres deep
  • BTA tp to 80mm ø x 2 metres deep
  • Twist Drilling up to ø 50mm
  • Tapping up to M48 x 3 (Larger threads by circular milling)
  • Milling Capacity: 250 cm³/min
  • Rotary Clamping Table up to 20 tons
X - axis 3 metres (Vertical Column)
Y - axis 1.5 metres (Vertical Slide)
W - axis 2.6 metres (Drilling SLide) with +/-15° Tilt facility
Z - axis 1 metre (Clamping Table)
BW 300 Multi Axis Table Machine. Subcontract Machining Work.

  Contact Us or Call Us on: +44 (0)1675 433 250

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