Boring Bar, 3/8" Indexable 

Boring Bar, 3/8" Indexable
  • Profiling bars for semi-finishing and finishing operations
  • Designed for CCMT 80° inserts (one insert included)
  • 7° Relief angle
  • Negative 5° Lead angle for boring
  • 3° Side & end cutting edge angle
Part Number: 1779
Weight: 0.21 lb

Price: $29.95

In stock
This 3/8" diameter indexable boring bar uses CCMT inserts.

Minimum bore diameter is 0.50"

Use CCMT 21.51 or CCMT 21.52 inserts with this boring bar set.

Chris Chris' Tips
Make sure you get the correct inserts and retaining screws for your indexable turning tools.

Our chart of indexable inserts shows which inserts and which screw to use with each of our indexable tools.

Overall Length 6" (152 mm)
Diameter 0.375" (9.52 mm)
Minimum Bore 0.500" (12.70 mm)
CCMT Inserts 80°
Replacement Inserts CCMT-21.51 or CCMT-21.52
Relief Angle
Lead Angle for Boring -5°
Side & End Cutting Edge Angle
Screw M2.5x8
Torx Wrench T-8


This product works with these products:

This product works with lathes with a 0.375 to 0.5 inch tool bit size including:

  •   Harbor Freight 44859 Central Machinery 8x12 Precision Mini Lathe
  •   Grizzly G0768 8x16 Benchtop Lathe
  • 3536 HiTorque 8.5x16 Bench Lathe
  •   SIEG C4 8.5x16 Bench Lathe
  •   SIEG SC4 8.5x16 Bench Lathe
  •   Travers Tools OT218410 OTMT 8x16 Bench Lathe
  • 3540 HiTorque 8.5x20 Bench Lathe
  • 3595 HiTorque 8.5x20 Deluxe Bench Lathe
  • 7500 HiTorque 8.5x20 Bench Lathe
  • 7550 HiTorque 8.5x20 Deluxe Bench Lathe
  •   BD-920N Jet 9x20 Lathe
  •   Grizzly G4000 9x19 Bench Lathe
  •   Harbor Freight 45861 Central Machinery 9x20 Bench Lathe
  •   Busy Bee Tools CX705 Craftex 10x21 Lathe Mill Combo
  •   Grizzly G0516 10x21 Lathe Mill Combo
  •   SIEG M6 10x21 Lathe Mill Combo