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Tri-Lead Indexable Boring Bars

APT Brand - Made in USA
  • Inserts can be indexed and replaced without loss of hole size or depth
  • Made of tempered alloy steel for rigidity
  • Cartridges are hardened and ground to precision accuracy
  • Uses standard 3/8" I.C. Triangle Inserts
  • Available in 4 different shank sizes
  • 3 different cartridges - 3 different lead angles - all interchangeable!
Holders & Sets
3/4", 1", 1-1/4" & 1-1/2" Shank Sizes - Holders and Sets
Replacement TPG Inserts for Tri-Lead Boring Bars.
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