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Highly Flexible Modular Boring System

One system includes highly flexible roughing and fine-boring heads to large bridge tooling with optimum amount of tooling components. 

This premium boring line enables roughing to fine-boring operations using one system with a large diameter range from 9,75–2,205mm (.384–86.8"). The ModBORE system can be used in most workpiece materials in metalcutting applications along with the latest Kennametal standard ISO turning inserts. 

Complete System

  • Twin blade heads for roughing to semi-finishing operations starting from diameter 23,5mm (.925").
  • Fine-boring heads for finishing in diameters 9,75–2,205mm (.384–86.8").
  • Bridge tooling for large diameters up to 2,205mm (86.8") standard with both roughing and fine-finishing heads.
  • Through-coolant capability in all styles.

Resolution

  • Fine adjustable roughing heads. 
  • 0,01mm (.0004") diameter adjustment respective 2 μm (.00008") with easy-to-read large vernier scale with fine-boring heads.

Product Variety

  • KM™ shanks for use in all spindles with compatible adaptors.
  • HSK shanks for use without adaptors.
  • Inch shanks are most economical to use with compatible adaptors.

Based on KM™, HSK, and inch SSF couplings, match all spindle specifications direct or indirect via adaptors. The ModBORE fine-boring system uses standard ISO/ANSI turning inserts for maximum performance and flexibility.

RBHT • Twin Cutters for Rough and Semi-Finish Boring 

  • Diameters 23,5–153mm (.925–6.024").
  • KM, HSK, and inch straight shank back end versions available.
  • Preloaded serration and ground support face for stable connection, minimal vibration, and maximum accuracy, with easy diameter adjustment.
  • Large selection of blades sets:
    -Staggered - efficient machining of large depths of cut.
    -70° - for challenging applications requiring stable corner radii and full use of inserts.
    -90° - most precise machining results.
  • Generous clearance and through coolant enable free chip flow and improved tool life.
  • All toolholders accept positive standard inserts. Toolholders in diameter 65,5mm (2.58") and greater for negative standard inserts.

FBHM • Offset Boring Bar and Cartridge Heads for Fine Finishing 

  • Diameters 9,75–320mm (.384–12.59"). 
  • KM-TS™, HSK, CV, DV, and BT steep taper back end styles available.
  • Precision-ground micrometric screw enables fi ne adjustment of 2 μm (.00008"). Large TiN-coated dial is easy to adjust and read.
  • Standard steel and carbide boring bars adjust in length for maximum stability.
  • Aluminium diameter extender with insert cartridges and counterweight used for diameters starting at 86mm (3.38") for maximum fl exibility.
  • Through coolant at the cutting edge improves tool life, surface fi nish, and chip evacuation.

FBHO • Offset Boring Bar Heads for Fine Finishing 

  • Diameters 9,75–88,1mm (.384–3.46").
  • KM™, HSK, and inch straight shank back end styles available.
  • Precision-ground micrometric screw enables fi ne adjustment of 2 μm (.00008") via easy-to-read vernier scale.
  • Standard steel and carbide boring bars can be adjusted in length for maximum stability.
  • Through coolant at the cutting edge improves tool life, surface fi nish, and chip evacuation.

FBHS • Cartridge Boring Heads for Fine Finishing 

  • Diameters 23,5–153mm (.925–6.024").
  • KM, HSK, and inch straight shank back end styles available.
  • Precision-ground micrometric screw enables fi ne adjustment of 2 μm (.00008") via easy-to-read vernier scale.
  • Large selection of insert holders:
    -95° - for use with wiper turning inserts.
    -90° regular diameter - for efficient machining in large depths of cut.
    -90° oversized diameter - for enhanced boring head diameter capabilities.
  •   Generous clearance and through coolant at the cutting edge improve tool life, surface fi nish, and chip evacuation.

BT • Bridge Tools for Rough and Finish Boring 

  • Diameters 150–2,205mm (5.91–86.81"). 
  • Sophisticated ground serration and T-style bolt clamping provide high cutting forces, and prevent diameter changes when heads are clamped.
  • Only 10 bridge consoles are needed for diameters up to 655mm (25.7").
  • KM, HSK, and some steep taper adaptors with ground serration available as standard. Through coolant at the cutting edge improves tool life and surface fi nish.
  • Diameters 650–2,205mm (25.5–86.81") covered by three aluminium-based consoles and two sets of steel slides for mounting rough and fi nish boring heads.
  • 90° roughing head sets ensure precise height alignment, and negative standard inserts enable high metal removal rates.
  • Counterweight for better balancing and fi ne-boring head with precision-ground micrometric screw for adjustments of 2 μm (.00008").

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