Iscar 6402758 Boring Bar 0.315 in Min Bore Solid Carbide

Product Description

The ISCAR 6402758 is a solid carbide boring bar designed for internal bore machining operations on CNC lathes and turning centers. Built to ISCAR manufacturer grade IC228, this right-hand cutting tool features a TiCN and TiN finish coating that extends cutting edge life in a range of ferrous and non-ferrous materials. With a minimum bore diameter of 0.315 inches and an overall length of 1.0236 inches, it is sized for tight-clearance internal turning work where rigidity and precision matter. Machinists and toolroom technicians select this bar for small-bore finish and semi-finish turning applications.

This boring bar is suited for small-bore internal turning on production and job-shop lathes. Its 7.00 mm shank diameter and 26.00 mm overall length make it appropriate for compact toolholders and Swiss-style or gang-tool setups. The 0.1378-inch maximum bore depth is intended for shallow internal profiles, step bores, and bore cleanup passes. Right-hand cutting orientation is standard for conventional lathe spindle rotation.

Key Features

• Solid carbide construction for rigidity and vibration resistance in small-bore applications
• TiCN and TiN finish coating for improved wear resistance and tool life
• ISCAR manufacturer grade IC228 for consistent cutting performance
• Right-hand cutting direction for standard lathe spindle orientation
• Minimum bore diameter of 0.315 inches suits tight internal geometries
• Compact 1.0236-inch overall length for use in confined tooling envelopes

Compatibility

Designed as an OEM-style replacement boring bar for use in toolholders and turrets that accept a 7.00 mm shank diameter, typical of small-bore internal turning setups on CNC and manual lathes.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. The machine spindle must be fully stopped and the tool turret or holder de-energized before mounting or removing the boring bar. Secure the shank firmly in the toolholder to the holder manufacturer's specified clamping procedure to prevent tool pullout during cutting. Follow applicable shop safety standards and machine guarding requirements during setup and operation.