Large Cri-Bore System    360 Icon
Utilizing an extender bar and adapting standard Cri-Bore boring heads will extend the diameter range for internal and external boring.
  • Uses microadjusting 1.500" Cri-Bore boring heads
  • Modular system that allows you to use CAT, BT, or HSK shanks
  • Increased RPMs due to low center of gravity to the machine spindle
  • Can rotate boring heads 180° for external turning
  • Available in microadjustment for 0.00005" or 0.001 mm increments
  • Extender bars provide 1.125" adjustment on diameter
  • Seven extender bars provide a diameter range from 5.000" - 12.125" (127.00 mm - 307.90 mm) for internal bores
  • OD turning diameter range of 0.710" - 7.830" (18.10 mm - 198.80 mm)
  • Max cutting speed ID boring: 1,000 SFM (305 M/min) at 0 radial offset and used with counterweight or additional boring head
  • Max cutting speed OD boring: Contact our application engineering department
Recommended Materials  
Key Icon Steel
Material Key Icon High Temp Alloy
Key Icon Stainless Steel
Material Key Icon Hardened Steel
Key Icon Cast Iron
Material Key Icon Non-Ferrous
KeyIcon Reference

Material Key Icon
Material Key Icon
Material Key Icon
Material Key Icon
Material Key Icon
Material Key Icon

Recommended Industries  
Key Icon Medical
Industry Key Icon Renewable Energy/ Energy
Key Icon Automotive
Industry Key Icon Aerospace
Key Icon Firearms
Industry Key Icon Agriculture
Key Icon Oil and Gas
Industry Key Icon Marine
Key Icon General Production
Industry Key Icon Heavy Equipment
Key Icon Hydraulics
Industry Key Icon Tool, Mold, and Die
Key Icon Structural Steel Fabricator
Key Icon Reference

Technical Information

Product Specifications
Product Type
Modular Boring System
Outer Diameter Range
0.710" - 7.830" (19.00 mm - 198.00 mm)
Inner Diameter Range
5.00" - 12.125" (127.00 mm - 307.00 mm)
Boring Systems
Literature Thumbnail

Literature Order Number: AMPC-B2

Recommended Cutting Data
Criterion Finish Boring

Additional Resources and Guidelines