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Holemaking - Boring - Bridge Bars & Jumbo Bridge Bars

Supplier: Seco Tools Australia playlist_addCompare

Seco Tools has a complete range of Bridge bars and Jumbo Bridge bars for large diameter boring, overturning and grooving.

Price Guide (Inc GST): POA

  • The Bridge bar range covers diameters from 204 to 655 mm (inches: 8.03 to 25.78)
  • The Jumbo Bridge bars are made of high tensile aluminium with steel interfaces cover the 654 - 2155 mm (inches: 25.75 to 84.843)diameters range

Precision and reliability

  • Excellent rigidity - strong design (boring blocks clamped within the Bridge bar, Bridge bars clamped within the Jumbo body)
  • Easy and reliable assembly and adjustment of the blocks using a cam driving mechanism
  • Better results than e g milling by interpolation: better quality,lower machining times, less stress on machine spindle


  • Large range of diameters as standard products
  • Modular concept - Jumbo Bridge bars use standard Bridge bars and boring blocks
  • Symmetrical or staggered boring possible for rough boring
  • Large OD-overturning possible
  • Same insert holder for roughing and finishing

User friendly

  • Rough and fine boring using the same Bridge bar
  • Micrometric screw on the side of the bars for easy access and setting
  • Angular orientation every 30 degrees for easy storing in machine magazines

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