Value Collection 375-1686 Boring Bar C6 Carbide-tipped

Product Description

The VALUE COLLECTION 375-1686 is a right-hand carbide-tipped boring bar designed for internal diameter machining on lathes and boring mills. Built with a C6 carbide-tipped insert grade, it handles a minimum bore diameter of 0.6875 inches (11/16 inches) and reaches a maximum bore depth of 2.8125 inches (2-13/16 inches). The 3/4-inch shank diameter provides solid rigidity in standard tool holders, minimizing chatter during cuts. With an overall length of 4-13/16 inches, this bar suits short to mid-reach applications in both job shop and production turning environments. Machinists and tool-and-die technicians are the primary users.

This boring bar is suited for general-purpose internal turning and hole finishing operations on steel, cast iron, and similar ferrous materials where C6 carbide grade performs reliably. It fits right-hand tool holder setups on manual and CNC lathes. Typical applications include cleaning up drilled holes, sizing bores to tolerance, and finishing blind or through holes where a 3/4-inch shank tooling system is in use. The right-hand cutting direction means it cuts on the conventional forward feed toward the chuck.

Key Features

• C6 carbide-tipped construction for wear resistance on ferrous materials
• Minimum bore diameter of 11/16 inches (0.6875 inches) for small-bore access
• Maximum bore depth of 2-13/16 inches (2.8125 inches)
• 3/4-inch shank diameter fits standard lathe tool holders
• Right-hand cutting direction for conventional forward-feed turning
• Overall length of 4-13/16 inches for compact reach in tight setups

Compatibility

Designed as an OEM-style replacement or direct-use boring bar for lathes and boring mills equipped with 3/4-inch right-hand tool holder systems.

Installation Notes

Installation should be performed by a qualified machinist following standard shop safety procedures. Ensure the lathe spindle is fully stopped and locked out before mounting or adjusting the boring bar in the tool holder. Secure the shank with appropriate set screws torqued per your tool holder manufacturer guidelines. Verify boring bar overhang does not exceed recommended limits for the shank diameter to prevent deflection and maintain bore accuracy.