Iscar 6403551 Profile Boring Bar Solid Carbide Rh

Product Description

The ISCAR 6403551 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 0.1575 inches, making it suited for small-bore finish work where precision geometry is critical. The bar carries an IC908 manufacturer grade carbide substrate with a TiAlN finish coating, which provides thermal resistance and wear life in interrupted cuts and hard materials. Overall length is 1.1811 inches with a maximum bore depth of 0.5906 inches. Machinists and CNC operators working in job shop or production environments install this type of tooling in qualified boring bar holders.

This profile boring bar is intended for internal turning and profiling of small-diameter bores in ferrous and non-ferrous workpieces. The 4.00 mm shank diameter and compact 30.00 mm overall length make it appropriate for tight-clearance bore entries. The 0.0039-inch corner radius suits fine-finish profiling passes where edge geometry and surface finish must be held to close tolerances. Typical applications include producing grooves, chamfers, and contoured internal profiles in precision turned components.

Key Features

• Solid carbide construction for rigidity and vibration resistance in small-bore applications
• TiAlN finish coating for extended tool life in elevated cutting temperatures
• IC908 carbide grade suited for a wide range of workpiece materials
• Right-hand cutting direction for standard lathe and turning center setups
• 0.0039-inch corner radius for fine-profile and finish-pass internal work
• Compact 1.1811-inch OAL fits toolholders requiring minimal shank protrusion

Compatibility

Designed as an OEM-style solid carbide profile boring bar for use in qualified 4.00 mm boring bar toolholders on CNC lathes and turning centers configured for right-hand internal turning operations.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the turret is de-energized before changing or setting tooling. Secure the shank in a matched-diameter boring bar holder to the recommended clamping torque specified by the toolholder manufacturer. Verify tool offset and runout before taking a cut to protect the carbide edge from overload on first engagement.