Iscar 6412039 Chamfering Boring Bar Solid Carbide

Product Description

The ISCAR 6412039 is a chamfering, corner radius, and profiling boring bar manufactured from super micrograin solid carbide. It is designed for internal boring operations requiring precise chamfering and corner radius work in small-diameter bores. The bar has a minimum bore diameter of 0.11 inches and a maximum bore depth of 0.008 inches, with a corner radius of 0.004 inches. Its right-hand cutting direction and compact 0.945-inch overall length make it suited for tight internal geometries on CNC lathes and machining centers. Machinists and tool and die professionals install and operate this tooling.

This boring bar is used in precision machining applications where small-bore chamfering and profiling are required. Its 0.11-inch minimum bore diameter targets miniature and micro-bore work common in medical, aerospace, and precision mechanical component manufacturing. The 4.00-millimeter shank diameter and 24.00-millimeter overall length fit corresponding tool holders designed for that shank size. It is suited for both production and job-shop environments where consistent finish quality in tight internal features is critical.

Key Features

• Boring bar types include boring, chamfering, and profiling in a single tool
• Super micrograin solid carbide construction for wear resistance and edge retention in small-bore applications
• Right-hand cutting direction for standard lathe and machining center setups
• 0.004-inch corner radius for controlled edge blending and chamfer geometry
• Compact 0.945-inch overall length for access in confined internal bore environments
• Bar end angle of 8 degrees supports clearance in profiling operations

Compatibility

Designed for use in tool holders accepting a 4.00-millimeter shank diameter boring bar, as an OEM-style precision carbide boring bar for small-bore chamfering and profiling operations.

Installation Notes

This boring bar is installed and operated by qualified machinists on CNC lathes, turning centers, or machining centers. Power down and lock out the spindle before changing or setting tooling. Ensure the tool holder bore and clamping mechanism are clean and within specified tolerance before seating the shank. Follow machine tool manufacturer guidelines and applicable shop safety standards when setting tool length offsets and running trial cuts.