Iscar 6403846 Chamfering Boring Bar Solid Carbide Tialn

Product Description

The ISCAR 6403846 is a solid carbide chamfering boring bar designed for internal chamfering operations on CNC lathes and boring machines. Built to ISCAR manufacturer grade IC908 with a TiAlN finish coating, this bar delivers wear resistance and thermal stability in demanding cut conditions. It has a minimum bore diameter of 0.2677 inches, a maximum bore depth of 1.3386 inches, and an overall length of 1.97 inches. The right-hand cutting direction makes it suitable for standard lathe spindle rotation. The 0.0059-inch corner radius supports clean, precise chamfer profiles at the bore entry.

This chamfering boring bar is suited for precision machining environments where small-bore internal chamfering is required. The 7.00 mm shank diameter fits standard boring bar holders and tooling blocks used in production turning and CNC machining centers. It is appropriate for shops running tight-tolerance work in steel, stainless, and hard alloy materials where IC908 carbide grade and TiAlN coating provide extended tool life. Machinists and tooling specialists working in job shops or production facilities will find this bar a direct fit for small-bore applications.

Key Features

• Solid carbide construction in ISCAR IC908 grade for high hardness and wear resistance
• TiAlN coating provides thermal protection and extended tool life in ferrous and hard materials
• Minimum bore diameter of 0.2677 inches suits small-bore internal chamfering work
• Maximum bore depth of 1.3386 inches allows reach into deeper bores
• Right-hand cut configuration for standard CNC lathe and boring machine setups
• 0.0059-inch corner radius for precise, controlled chamfer geometry

Compatibility

Designed as an OEM-style replacement and standard tooling option for boring bar holders accommodating a 7.00 mm shank diameter in CNC turning and boring applications.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before seating or removing the boring bar. Ensure the shank is fully engaged and clamped securely in the toolholder to the manufacturer-specified retention method for your tooling system. Inspect the cutting edge for chips or coating damage before use and replace the bar if the edge is compromised.