APT Tri-Lead Indexable Boring Bar, 3/4″ Shank Dia., Min. Bore 1-1/6″, Use Insert TPG32_, 5-1/2″ OAL – TL345

• Internal Turning
• 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.
• Coolant Use: No
• Lead Angle: 85-95
• 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.
• Right Hand
• Insert Not Included.

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