Value Collection 4256401 Rectangle Polishing Stone 400 Grit

Product Description

The VALUE COLLECTION 4256401 is a rectangle-profile polishing stone made from aluminum oxide abrasive material. It measures 6 inches in overall length, 0.25 inches wide, and 0.125 inches thick, making it well suited for precision honing and surface finishing in tight or narrow areas. Rated at 400 grit, it falls in the super fine category, which is appropriate for finishing passes and final surface refinement on metal, tooling, and machined components. Machinists, tool-and-die workers, and maintenance technicians commonly use stones of this type for deburring edges, smoothing bores, and refining contact surfaces on close-tolerance parts.

This polishing stone is used in metal fabrication, tool maintenance, and general machining applications where a controlled, hand-applied abrasive is needed. Its slim rectangular profile allows access to grooves, keyways, slots, and other confined surfaces where larger stones or power tools cannot reach. It is not oil-filled, so users may apply honing oil or a dry technique depending on the material and finish requirement. Typical applications include finishing mold components, sharpening cutting tools, and refining seating surfaces on valves or fittings.

Key Features

• Aluminum oxide abrasive construction for consistent cutting and long service life on ferrous and non-ferrous metals
• 400 grit super fine rating delivers a smooth, refined finish suitable for final-stage honing passes
• Slim rectangular profile at 0.25 inches wide and 0.125 inches thick for access to narrow grooves and slots
• 6 inches overall length provides adequate contact surface for controlled hand strokes
• Not oil-filled, compatible with both dry use and applied honing oil depending on the application

Compatibility

Designed as a general-purpose hand honing stone for use on metal surfaces in machining, fabrication, and maintenance applications where a super fine 400 grit aluminum oxide abrasive is appropriate.

Installation Notes

This stone is a hand-applied abrasive tool and does not require mechanical installation. Before use, secure the workpiece and ensure the work area is clear of chips or debris that could scratch finished surfaces. Apply honing oil if a wet technique is preferred to extend stone life and improve surface finish. Use consistent, even strokes with light pressure to avoid uneven wear on the stone face.