Walter 6411242 Boring Bar 4mm Right Hand Solid Carbide

Product Description

The WALTER 6411242 is a solid carbide boring bar engineered for small-diameter internal boring operations on machining centers and CNC lathes. With a minimum bore diameter of 4.00 mm (0.157 inches) and a shank diameter of 4.00 mm, this bar is designed for tight-tolerance work in confined bores. The K20/P10 micrograin solid carbide construction delivers high wear resistance across a range of workpiece materials including cast iron, steel, and non-ferrous alloys. A 0.20 mm corner radius and 6-degree bar end angle support accurate, controlled cutting in right-hand cutting applications. Machinists and toolroom professionals working with precision bore diameters rely on this bar for repeatable results.

This boring bar suits residential toolroom, job shop, and production CNC environments where small-diameter internal features require tight control. It is intended for right-hand cutting operations and fits tool holders and collet systems accepting a 4.00 mm shank. Typical applications include finish boring, reaming preparation, and small-bore finishing passes on steel, cast iron, and similar workpiece materials. The 30.00 mm overall length allows clearance in compact setups while maintaining rigidity at this shank diameter.

Key Features

• Minimum bore diameter of 4.00 mm (0.157 inches) for small, tight-tolerance bores
• Solid carbide construction in K20/P10 micrograin grade for wear resistance across multiple material classes
• Right-hand cutting direction for standard CNC lathe and machining center setups
• 0.20 mm corner radius for controlled surface finish and edge geometry
• 6-degree bar end angle to aid clearance in confined bore entry
• 30.00 mm overall length balances reach and rigidity at the 4.00 mm shank diameter

Compatibility

Designed as a direct-fitment boring bar for tool holders and precision collet systems accepting a 4.00 mm round shank in CNC lathe and machining center applications.

Installation Notes

Installation and tool changes must be performed by a qualified machinist with the spindle fully stopped and the machine in a safe, locked-out state. Ensure the shank seating surface and collet or holder bore are clean and free of chips before clamping. Follow machine tool manufacturer torque guidelines for clamping screws. Confirm bore diameter and depth clearances against part program before initiating a cut.