Value Collection 4256304 Aluminum Oxide Polishing Stone 320 Grit

Product Description

The VALUE COLLECTION 4256304 is a rectangular aluminum oxide polishing stone designed for fine surface finishing and edge honing across a wide range of materials. At 320 grit, this stone falls in the extra fine category, making it well suited for deburring, light stock removal, and final surface preparation on metal, plastic, and composite workpieces. The stone measures 6 inches in overall length, 0.5 inches wide, and 0.25 inches thick, giving it a slim profile that fits tight grooves, slots, and contoured surfaces. It is not oil filled. Machinists, toolmakers, and maintenance technicians are the primary users of this type of stone.

This polishing stone is used in precision hand-finishing applications in machine shops, maintenance facilities, and production environments. Its rectangular shape allows flat, consistent contact on planar surfaces and internal corners. The extra fine 320 grit rating makes it appropriate for finishing passes rather than aggressive material removal, fitting naturally into a multi-stage stoning process as a final or near-final step before inspection or assembly.

Key Features

• 320 grit extra fine aluminum oxide abrasive for controlled, fine finishing
• Rectangular profile allows access to flat surfaces, slots, and tight corners
• 6 inch length provides good hand grip and stroke length for consistent passes
• Slim 0.25 inch thickness suits confined workspaces and detailed deburring
• Not oil filled, compatible with dry use or user-applied honing fluid
• Sold in a package quantity of 12, suitable for stocking maintenance kits

Compatibility

Designed as a general-purpose hand polishing and honing stone for use on metal, plastic, and composite surfaces where extra fine grit finishing is required.

Installation Notes

This stone is a hand tool and requires no mechanical installation. Wear appropriate eye and hand protection when deburring or honing sharp edges. Apply a compatible honing oil or use dry as the workpiece material allows. Inspect the stone surface periodically for glazing or loading, and dress as needed to maintain cutting action.