Iscar 6403527 Profile Boring Bar Solid Carbide

Product Description

The ISCAR 6403527 is a solid carbide profile boring bar designed for internal profiling operations on CNC lathes and turning centers. It features a right-hand cutting direction and a minimum bore diameter of 0.1969 inches (5.00 mm), making it well suited for small-bore work where rigidity and precision are critical. The bar carries a TiCN and TiN finish coating and is manufactured to ISCAR grade IC228, which supports consistent performance in a range of workpiece materials. Overall length is 1.378 inches (35.00 mm), and the corner radius is 0.0197 inches. At 0.02 pounds, the bar is compact and lightweight for its class.

This profile boring bar is intended for use in precision machining environments where tight bore tolerances and fine surface finishes are required. It is suited for small-diameter internal profiling in production and job-shop turning applications. The maximum bore depth of 0.748 inches (19.00 mm) makes it appropriate for shallow-to-mid-depth internal features. Machinists working with small-bore components in aerospace, medical, and general precision manufacturing will find this bar applicable to their setups. It is sold individually and is a direct replacement or supplemental tooling item for compatible ISCAR tooling systems.

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 grade IC228 for reliable performance across a range of materials
• Right-hand cutting direction for standard CNC lathe setups
• 0.0197-inch corner radius for controlled profile geometry
• Compact 1.378-inch overall length suitable for tight-clearance tooling stations

Compatibility

Designed as an OEM-style profile boring bar for use in CNC turning and boring applications requiring a 5.00 mm shank diameter and a minimum bore diameter of 0.1969 inches.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. The machine spindle must be fully stopped and the turret locked out before inserting or removing the bar from the tool holder. Confirm shank diameter compatibility with the holder before clamping, and verify runout with an indicator after seating. Do not exceed the recommended bore depth of 0.748 inches for this bar length.