"Tri-Lead" Indexable Boring Bars & Sets

Brand: APT

3 different operations by simply changing cartridges


  • Furnished in (4) lengths: (3) for boring, (1) extra for lathe work
  • Made of tempered alloy steel for proper boring rigidity.
  • Chipbreaker feature of bar breaks chip into small tight rolls.
  • Cartridges are hardened to Rc 60 - 64 and ground to +.0005" accuracy to assure proper seating of cutting insert.
  • Cutting inserts can be indexed or replaced without loss of hole size or depth.
  • Flat sides on bar can be mounted in square lathe turrets or in round holes providing three point suspension for maximum rigidity.
  • All bars complete with (1) CP-0 cartridge, (1) clamp, (1) chipbreaker, (1) cartridge shim and (1) cutting insert.
  • Bars use standard 3/8" I.C. triangular inserts.


Insert Included.

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